JavaScript常用工具方法封装

jiezi

6 年前

因为工作中经常用到这些方法，所有便把这些方法进行了总结。
JavaScript
1. type 类型判断
isString (o) {// 是否字符串
return Object.prototype.toString.call(o).slice(8, -1) === ‘String’
}

isNumber (o) {// 是否数字
return Object.prototype.toString.call(o).slice(8, -1) === ‘Number’
}

isBoolean (o) {// 是否 boolean
return Object.prototype.toString.call(o).slice(8, -1) === ‘Boolean’
}

isFunction (o) {// 是否函数
return Object.prototype.toString.call(o).slice(8, -1) === ‘Function’
}

isNull (o) {// 是否为 null
return Object.prototype.toString.call(o).slice(8, -1) === ‘Null’
}

isUndefined (o) {// 是否 undefined
return Object.prototype.toString.call(o).slice(8, -1) === ‘Undefined’
}

isObj (o) {// 是否对象
return Object.prototype.toString.call(o).slice(8, -1) === ‘Object’
}

isArray (o) {// 是否数组
return Object.prototype.toString.call(o).slice(8, -1) === ‘Array’
}

isDate (o) {// 是否时间
return Object.prototype.toString.call(o).slice(8, -1) === ‘Date’
}

isRegExp (o) {// 是否正则
return Object.prototype.toString.call(o).slice(8, -1) === ‘RegExp’
}

isError (o) {// 是否错误对象
return Object.prototype.toString.call(o).slice(8, -1) === ‘Error’
}

isSymbol (o) {// 是否 Symbol 函数
return Object.prototype.toString.call(o).slice(8, -1) === ‘Symbol’
}

isPromise (o) {// 是否 Promise 对象
return Object.prototype.toString.call(o).slice(8, -1) === ‘Promise’
}

isSet (o) {// 是否 Set 对象
return Object.prototype.toString.call(o).slice(8, -1) === ‘Set’
}

isFalse (o) {
if (!o || o === ‘null’ || o === ‘undefined’ || o === ‘false’ || o === ‘NaN’) return true
return false
}

isTrue (o) {
return !this.isFalse(o)
}

isIos () {
var u = navigator.userAgent;
if (u.indexOf(‘Android’) > -1 || u.indexOf(‘Linux’) > -1) {// 安卓手机
// return “Android”;
return false
} else if (u.indexOf(‘iPhone’) > -1) {// 苹果手机
// return “iPhone”;
return true
} else if (u.indexOf(‘iPad’) > -1) {//iPad
// return “iPad”;
return false
} else if (u.indexOf(‘Windows Phone’) > -1) {//winphone 手机
// return “Windows Phone”;
return false
}else{
return false
}
}

isPC () { // 是否为 PC 端
var userAgentInfo = navigator.userAgent;
var Agents = [“Android”, “iPhone”,
“SymbianOS”, “Windows Phone”,
“iPad”, “iPod”];
var flag = true;
for (var v = 0; v < Agents.length; v++) {
if (userAgentInfo.indexOf(Agents[v]) > 0) {
flag = false;
break;
}
}
return flag;
}

browserType(){
var userAgent = navigator.userAgent; // 取得浏览器的 userAgent 字符串
var isOpera = userAgent.indexOf(“Opera”) > -1; // 判断是否 Opera 浏览器
var isIE = userAgent.indexOf(“compatible”) > -1 && userAgent.indexOf(“MSIE”) > -1 && !isOpera; // 判断是否 IE 浏览器
var isIE11 = userAgent.indexOf(‘Trident’) > -1 && userAgent.indexOf(“rv:11.0”) > -1;
var isEdge = userAgent.indexOf(“Edge”) > -1 && !isIE; // 判断是否 IE 的 Edge 浏览器
var isFF = userAgent.indexOf(“Firefox”) > -1; // 判断是否 Firefox 浏览器
var isSafari = userAgent.indexOf(“Safari”) > -1 && userAgent.indexOf(“Chrome”) == -1; // 判断是否 Safari 浏览器
var isChrome = userAgent.indexOf(“Chrome”) > -1 && userAgent.indexOf(“Safari”) > -1; // 判断 Chrome 浏览器

if (isIE) {
var reIE = new RegExp(“MSIE (\\d+\\.\\d+);”);
reIE.test(userAgent);
var fIEVersion = parseFloat(RegExp[“$1”]);
if(fIEVersion == 7) return “IE7”
else if(fIEVersion == 8) return “IE8”;
else if(fIEVersion == 9) return “IE9”;
else if(fIEVersion == 10) return “IE10”;
else return “IE7 以下 ”//IE 版本过低
}
if (isIE11) return ‘IE11’;
if (isEdge) return “Edge”;
if (isFF) return “FF”;
if (isOpera) return “Opera”;
if (isSafari) return “Safari”;
if (isChrome) return “Chrome”;
}

checkStr (str, type) {
switch (type) {
case ‘phone’: // 手机号码
return /^1[3|4|5|6|7|8|9][0-9]{9}$/.test(str);
case ‘tel’: // 座机
return /^(0\d{2,3}-\d{7,8})(-\d{1,4})?$/.test(str);
case ‘card’: // 身份证
return /(^\d{15}$)|(^\d{18}$)|(^\d{17}(\d|X|x)$)/.test(str);
case ‘pwd’: // 密码以字母开头，长度在 6~18 之间，只能包含字母、数字和下划线
return /^[a-zA-Z]\w{5,17}$/.test(str)
case ‘postal’: // 邮政编码
return /[1-9]\d{5}(?!\d)/.test(str);
case ‘QQ’: //QQ 号
return /^[1-9][0-9]{4,9}$/.test(str);
case ’email’: // 邮箱
return /^[\w-]+(\.[\w-]+)*@[\w-]+(\.[\w-]+)+$/.test(str);
case ‘money’: // 金额 (小数点 2 位)
return /^\d*(?:\.\d{0,2})?$/.test(str);
case ‘URL’: // 网址
return /(http|ftp|https):\/\/[\w\-_]+(\.[\w\-_]+)+([\w\-\.,@?^=%&:/~\+#]*[\w\-\@?^=%&/~\+#])?/.test(str)
case ‘IP’: //IP
return /((?:(?:25[0-5]|2[0-4]\\d|[01]?\\d?\\d)\\.){3}(?:25[0-5]|2[0-4]\\d|[01]?\\d?\\d))/.test(str);
case ‘date’: // 日期时间
return /^(\d{4})\-(\d{2})\-(\d{2}) (\d{2})(?:\:\d{2}|:(\d{2}):(\d{2}))$/.test(str) || /^(\d{4})\-(\d{2})\-(\d{2})$/.test(str)
case ‘number’: // 数字
return /^[0-9]$/.test(str);
case ‘english’: // 英文
return /^[a-zA-Z]+$/.test(str);
case ‘chinese’: // 中文
return /^[\u4E00-\u9FA5]+$/.test(str);
case ‘lower’: // 小写
return /^[a-z]+$/.test(str);
case ‘upper’: // 大写
return /^[A-Z]+$/.test(str);
case ‘HTML’: //HTML 标记
return /<(“[^”]*”|'[^’]*’|[^'”>])*>/.test(str);
default:
return true;
}

// 严格的身份证校验
isCardID(sId) {
if (!/(^\d{15}$)|(^\d{17}(\d|X|x)$)/.test(sId)) {
alert(‘ 你输入的身份证长度或格式错误 ’)
return false
}
// 身份证城市
var aCity={11:” 北京 ”,12:” 天津 ”,13:” 河北 ”,14:” 山西 ”,15:” 内蒙古 ”,21:” 辽宁 ”,22:” 吉林 ”,23:” 黑龙江 ”,31:” 上海 ”,32:” 江苏 ”,33:” 浙江 ”,34:” 安徽 ”,35:” 福建 ”,36:” 江西 ”,37:” 山东 ”,41:” 河南 ”,42:” 湖北 ”,43:” 湖南 ”,44:” 广东 ”,45:” 广西 ”,46:” 海南 ”,50:” 重庆 ”,51:” 四川 ”,52:” 贵州 ”,53:” 云南 ”,54:” 西藏 ”,61:” 陕西 ”,62:” 甘肃 ”,63:” 青海 ”,64:” 宁夏 ”,65:” 新疆 ”,71:” 台湾 ”,81:” 香港 ”,82:” 澳门 ”,91:” 国外 ”};
if(!aCity[parseInt(sId.substr(0,2))]) {
alert(‘ 你的身份证地区非法 ’)
return false
}

// 出生日期验证
var sBirthday=(sId.substr(6,4)+”-“+Number(sId.substr(10,2))+”-“+Number(sId.substr(12,2))).replace(/-/g,”/”),
d = new Date(sBirthday)
if(sBirthday != (d.getFullYear()+”/”+ (d.getMonth()+1) + “/” + d.getDate())) {
alert(‘ 身份证上的出生日期非法 ’)
return false
}

// 身份证号码校验
var sum = 0,
weights = [7, 9, 10, 5, 8, 4, 2, 1, 6, 3, 7, 9, 10, 5, 8, 4, 2],
codes = “10X98765432″
for (var i = 0; i < sId.length – 1; i++) {
sum += sId[i] * weights[i];
}
var last = codes[sum % 11]; // 计算出来的最后一位身份证号码
if (sId[sId.length-1] != last) {
alert(‘ 你输入的身份证号非法 ’)
return false
}

return true
}
}
2. Date
/**
* 格式化时间
*
* @param {time} 时间
* @param {cFormat} 格式
* @return {String} 字符串
*
* @example formatTime(‘2018-1-29’, ‘{y}/{m}/{d} {h}:{i}:{s}’) // -> 2018/01/29 00:00:00
*/
formatTime(time, cFormat) {
if (arguments.length === 0) return null
if ((time + ”).length === 10) {
time = +time * 1000
}

var format = cFormat || ‘{y}-{m}-{d} {h}:{i}:{s}’, date
if (typeof time === ‘object’) {
date = time
} else {
date = new Date(time)
}

var formatObj = {
y: date.getFullYear(),
m: date.getMonth() + 1,
d: date.getDate(),
h: date.getHours(),
i: date.getMinutes(),
s: date.getSeconds(),
a: date.getDay()
}
var time_str = format.replace(/{(y|m|d|h|i|s|a)+}/g, (result, key) => {
var value = formatObj[key]
if (key === ‘a’) return [‘ 一 ’, ‘ 二 ’, ‘ 三 ’, ‘ 四 ’, ‘ 五 ’, ‘ 六 ’, ‘ 日 ’][value – 1]
if (result.length > 0 && value < 10) {
value = ‘0’ + value
}
return value || 0
})
return time_str
}

/**
* 返回指定长度的月份集合
*
* @param {time} 时间
* @param {len} 长度
* @param {direction} 方向：1: 前几个月; 2: 后几个月; 3: 前后几个月默认 3
* @return {Array} 数组
*
* @example getMonths(‘2018-1-29’, 6, 1) // -> [“2018-1”, “2017-12”, “2017-11”, “2017-10”, “2017-9”, “2017-8”, “2017-7”]
*/
getMonths(time, len, direction) {
var mm = new Date(time).getMonth(),
yy = new Date(time).getFullYear(),
direction = isNaN(direction) ? 3 : direction,
index = mm;
var cutMonth = function(index) {
if (index <= len && index >= -len) {
return direction === 1 ? formatPre(index).concat(cutMonth(++index)):
direction === 2 ? formatNext(index).concat(cutMonth(++index)):formatCurr(index).concat(cutMonth(++index))
}
return []
}
var formatNext = function(i) {
var y = Math.floor(i/12),
m = i%12
return [yy+y + ‘-‘ + (m+1)]
}
var formatPre = function(i) {
var y = Math.ceil(i/12),
m = i%12
m = m===0 ? 12 : m
return [yy-y + ‘-‘ + (13 – m)]
}
var formatCurr = function(i) {
var y = Math.floor(i/12),
yNext = Math.ceil(i/12),
m = i%12,
mNext = m===0 ? 12 : m
return [yy-yNext + ‘-‘ + (13 – mNext),yy+y + ‘-‘ + (m+1)]
}
// 数组去重
var unique = function(arr) {
if (Array.hasOwnProperty(‘from’) ) {
return Array.from(new Set(arr));
}else{
var n = {},r=[];
for(var i = 0; i < arr.length; i++){
if (!n[arr[i]]){
n[arr[i]] = true;
r.push(arr[i]);
}
}
return r;
}
}
return direction !== 3 ? cutMonth(index) : unique(cutMonth(index).sort(function(t1, t2){
return new Date(t1).getTime() – new Date(t2).getTime()
}))
}

/**
* 返回指定长度的天数集合
*
* @param {time} 时间
* @param {len} 长度
* @param {direction} 方向：1: 前几天; 2: 后几天; 3: 前后几天默认 3
* @return {Array} 数组
*
* @example date.getDays(‘2018-1-29′, 6) // -> [“2018-1-26”, “2018-1-27”, “2018-1-28”, “2018-1-29”, “2018-1-30”, “2018-1-31”, “2018-2-1″]
*/
getDays(time, len, diretion) {
var tt = new Date(time)
var getDay = function(day) {
var t = new Date(time)
t.setDate(t.getDate() + day)
var m = t.getMonth()+1
return t.getFullYear()+’-‘+m+’-‘+t.getDate()
}
var arr = []
if (diretion === 1) {
for (var i = 1; i <= len; i++) {
arr.unshift(getDay(-i))
}
}else if(diretion === 2) {
for (var i = 1; i <= len; i++) {
arr.push(getDay(i))
}
}else {
for (var i = 1; i <= len; i++) {
arr.unshift(getDay(-i))
}
arr.push(tt.getFullYear()+’-‘+(tt.getMonth()+1)+’-‘+tt.getDate())
for (var i = 1; i <= len; i++) {
arr.push(getDay(i))
}
}
return diretion === 1 ? arr.concat([tt.getFullYear()+’-‘+(tt.getMonth()+1)+’-‘+tt.getDate()]) :
diretion === 2 ? [tt.getFullYear()+’-‘+(tt.getMonth()+1)+’-‘+tt.getDate()].concat(arr) : arr
}

/**
* @param {s} 秒数
* @return {String} 字符串
*
* @example formatHMS(3610) // -> 1h0m10s
*/
formatHMS (s) {
var str = ”
if (s > 3600) {
str = Math.floor(s/3600)+’h’+Math.floor(s%3600/60)+’m’+s%60+’s’
}else if(s > 60) {
str = Math.floor(s/60)+’m’+s%60+’s’
}else{
str = s%60+’s’
}
return str
}

/* 获取某月有多少天 */
getMonthOfDay (time) {
var date = new Date(time)
var year = date.getFullYear()
var mouth = date.getMonth() + 1
var days

// 当月份为二月时，根据闰年还是非闰年判断天数
if (mouth == 2) {
days = (year%4==0 && year%100==0 && year%400==0) || (year%4==0 && year%100!=0) ? 28 : 29
} else if (mouth == 1 || mouth == 3 || mouth == 5 || mouth == 7 || mouth == 8 || mouth == 10 || mouth == 12) {
// 月份为：1,3,5,7,8,10,12 时，为大月. 则天数为 31；
days = 31
} else {
// 其他月份，天数为：30.
days = 30
}
return days
}

/* 获取某年有多少天 */
getYearOfDay (time) {
var firstDayYear = this.getFirstDayOfYear(time);
var lastDayYear = this.getLastDayOfYear(time);
var numSecond = (new Date(lastDayYear).getTime() – new Date(firstDayYear).getTime())/1000;
return Math.ceil(numSecond/(24*3600));
}

/* 获取某年的第一天 */
getFirstDayOfYear (time) {
var year = new Date(time).getFullYear();
return year + “-01-01 00:00:00”;
}

/* 获取某年最后一天 */
getLastDayOfYear (time) {
var year = new Date(time).getFullYear();
var dateString = year + “-12-01 00:00:00”;
var endDay = this.getMonthOfDay(dateString);
return year + “-12-” + endDay + ” 23:59:59″;
}

/* 获取某个日期是当年中的第几天 */
getDayOfYear (time) {
var firstDayYear = this.getFirstDayOfYear(time);
var numSecond = (new Date(time).getTime() – new Date(firstDayYear).getTime())/1000;
return Math.ceil(numSecond/(24*3600));
}

/* 获取某个日期在这一年的第几周 */
getDayOfYearWeek (time) {
var numdays = this.getDayOfYear(time);
return Math.ceil(numdays / 7);
}
3. Array
/* 判断一个元素是否在数组中 */
contains (arr, val) {
return arr.indexOf(val) != -1 ? true : false;
}

/**
* @param {arr} 数组
* @param {fn} 回调函数
* @return {undefined}
*/
each (arr, fn) {
fn = fn || Function;
var a = [];
var args = Array.prototype.slice.call(arguments, 1);
for(var i = 0; i < arr.length; i++) {
var res = fn.apply(arr, [arr[i], i].concat(args));
if(res != null) a.push(res);
}
}

/**
* @param {arr} 数组
* @param {fn} 回调函数
* @param {thisObj} this 指向
* @return {Array}
*/
map (arr, fn, thisObj) {
var scope = thisObj || window;
var a = [];
for(var i = 0, j = arr.length; i < j; ++i) {
var res = fn.call(scope, arr[i], i, this);
if(res != null) a.push(res);
}
return a;
}

/**
* @param {arr} 数组
* @param {type} 1：从小到大 2：从大到小 3：随机
* @return {Array}
*/
sort (arr, type = 1) {
return arr.sort((a, b) => {
switch(type) {
case 1:
return a – b;
case 2:
return b – a;
case 3:
return Math.random() – 0.5;
default:
return arr;
}
})
}

/* 去重 */
unique (arr) {
if (Array.hasOwnProperty(‘from’) ) {
return Array.from(new Set(arr));
}else{
var n = {},r=[];
for(var i = 0; i < arr.length; i++){
if (!n[arr[i]]){
n[arr[i]] = true;
r.push(arr[i]);
}
}
return r;
}
// 注：上面 else 里面的排重并不能区分 2 和 ‘2’，但能减少用 indexOf 带来的性能, 暂时没找到替代的方法。。。
/* 正确排重
if (Array.hasOwnProperty(‘from’) ) {
return Array.from(new Set(arr))
}else{
var r = [], NaNBol = true
for(var i=0; i < arr.length; i++) {
if (arr[i] !== arr[i]) {
if (NaNBol && r.indexOf(arr[i]) === -1) {
r.push(arr[i])
NaNBol = false
}
}else{
if(r.indexOf(arr[i]) === -1) r.push(arr[i])
}
}
return r
}

*/
}

/* 求两个集合的并集 */
union (a, b) {
var newArr = a.concat(b);
return this.unique(newArr);
}

/* 求两个集合的交集 */
intersect (a, b) {
var _this = this;
a = this.unique(a);
return this.map(a, function(o) {
return _this.contains(b, o) ? o : null;
});
}

/* 删除其中一个元素 */
remove (arr, ele) {
var index = arr.indexOf(ele);
if(index > -1) {
arr.splice(index, 1);
}
return arr;
}

/* 将类数组转换为数组的方法 */
formArray (ary) {
var arr = [];
if(Array.isArray(ary)) {
arr = ary;
} else {
arr = Array.prototype.slice.call(ary);
};
return arr;
}

/* 最大值 */
max (arr) {
return Math.max.apply(null, arr);
}

/* 最小值 */
min (arr) {
return Math.min.apply(null, arr);
}

/* 求和 */
sum (arr) {
return arr.reduce((pre, cur) => {
return pre + cur
})
}

/* 平均值 */
average (arr) {
return this.sum(arr)/arr.length
}
4. String 字符串操作
/**
* 去除空格
* @param {str}
* @param {type}
* type: 1- 所有空格 2- 前后空格 3- 前空格 4- 后空格
* @return {String}
*/
trim (str, type) {
type = type || 1
switch (type) {
case 1:
return str.replace(/\s+/g, “”);
case 2:
return str.replace(/(^\s*)|(\s*$)/g, “”);
case 3:
return str.replace(/(^\s*)/g, “”);
case 4:
return str.replace(/(\s*$)/g, “”);
default:
return str;
}
}

/**
* @param {str}
* @param {type}
* type: 1: 首字母大写 2：首页母小写 3：大小写转换 4：全部大写 5：全部小写
* @return {String}
*/
changeCase (str, type) {
type = type || 4
switch (type) {
case 1:
return str.replace(/\b\w+\b/g, function (word) {
return word.substring(0, 1).toUpperCase() + word.substring(1).toLowerCase();

});
case 2:
return str.replace(/\b\w+\b/g, function (word) {
return word.substring(0, 1).toLowerCase() + word.substring(1).toUpperCase();
});
case 3:
return str.split(”).map(function(word){
if (/[a-z]/.test(word)) {
return word.toUpperCase();
}else{
return word.toLowerCase()
}
}).join(”)
case 4:
return str.toUpperCase();
case 5:
return str.toLowerCase();
default:
return str;
}
}

/*
检测密码强度
*/
checkPwd (str) {
var Lv = 0;
if (str.length < 6) {
return Lv
}
if (/[0-9]/.test(str)) {
Lv++
}
if (/[a-z]/.test(str)) {
Lv++
}
if (/[A-Z]/.test(str)) {
Lv++
}
if (/[\.|-|_]/.test(str)) {
Lv++
}
return Lv;
}

/* 过滤 html 代码 (把 <> 转换)*/
filterTag (str) {
str = str.replace(/&/ig, “&”);
str = str.replace(/</ig, “<”);
str = str.replace(/>/ig, “>”);
str = str.replace(” “, “ ”);
return str;
}
5. Number
/* 随机数范围 */
random (min, max) {
if (arguments.length === 2) {
return Math.floor(min + Math.random() * ((max+1) – min ))
}else{
return null;
}

}

/* 将阿拉伯数字翻译成中文的大写数字 */
numberToChinese (num) {
var AA = new Array(“ 零 ”, “ 一 ”, “ 二 ”, “ 三 ”, “ 四 ”, “ 五 ”, “ 六 ”, “ 七 ”, “ 八 ”, “ 九 ”, “ 十 ”);
var BB = new Array(“”, “ 十 ”, “ 百 ”, “ 仟 ”, “ 萬 ”, “ 億 ”, “ 点 ”, “”);
var a = (“” + num).replace(/(^0*)/g, “”).split(“.”),
k = 0,
re = “”;
for(var i = a[0].length – 1; i >= 0; i–) {
switch(k) {
case 0:
re = BB[7] + re;
break;
case 4:
if(!new RegExp(“0{4}//d{” + (a[0].length – i – 1) + “}$”)
.test(a[0]))
re = BB[4] + re;
break;
case 8:
re = BB[5] + re;
BB[7] = BB[5];
k = 0;
break;
}
if(k % 4 == 2 && a[0].charAt(i + 2) != 0 && a[0].charAt(i + 1) == 0)
re = AA[0] + re;
if(a[0].charAt(i) != 0)
re = AA[a[0].charAt(i)] + BB[k % 4] + re;
k++;
}

if(a.length > 1) // 加上小数部分 (如果有小数部分)
{
re += BB[6];
for(var i = 0; i < a[1].length; i++)
re += AA[a[1].charAt(i)];
}
if(re == ‘ 一十 ’)
re = “ 十 ”;
if(re.match(/^ 一 /) && re.length == 3)
re = re.replace(“ 一 ”, “”);
return re;
}

/* 将数字转换为大写金额 */
changeToChinese (Num) {
// 判断如果传递进来的不是字符的话转换为字符
if(typeof Num == “number”) {
Num = new String(Num);
};
Num = Num.replace(/,/g, “”) // 替换 tomoney() 中的“,”
Num = Num.replace(/ /g, “”) // 替换 tomoney() 中的空格
Num = Num.replace(/￥/g, “”) // 替换掉可能出现的￥字符
if(isNaN(Num)) {// 验证输入的字符是否为数字
//alert(“ 请检查小写金额是否正确 ”);
return “”;
};
// 字符处理完毕后开始转换，采用前后两部分分别转换
var part = String(Num).split(“.”);
var newchar = “”;
// 小数点前进行转化
for(var i = part[0].length – 1; i >= 0; i–) {
if(part[0].length > 10) {
return “”;
// 若数量超过拾亿单位，提示
}
var tmpnewchar = “”
var perchar = part[0].charAt(i);
switch(perchar) {
case “0”:
tmpnewchar = “ 零 ” + tmpnewchar;
break;
case “1”:
tmpnewchar = “ 壹 ” + tmpnewchar;
break;
case “2”:
tmpnewchar = “ 贰 ” + tmpnewchar;
break;
case “3”:
tmpnewchar = “ 叁 ” + tmpnewchar;
break;
case “4”:
tmpnewchar = “ 肆 ” + tmpnewchar;
break;
case “5”:
tmpnewchar = “ 伍 ” + tmpnewchar;
break;
case “6”:
tmpnewchar = “ 陆 ” + tmpnewchar;
break;
case “7”:
tmpnewchar = “ 柒 ” + tmpnewchar;
break;
case “8”:
tmpnewchar = “ 捌 ” + tmpnewchar;
break;
case “9”:
tmpnewchar = “ 玖 ” + tmpnewchar;
break;
}
switch(part[0].length – i – 1) {
case 0:
tmpnewchar = tmpnewchar + “ 元 ”;
break;
case 1:
if(perchar != 0) tmpnewchar = tmpnewchar + “ 拾 ”;
break;
case 2:
if(perchar != 0) tmpnewchar = tmpnewchar + “ 佰 ”;
break;
case 3:
if(perchar != 0) tmpnewchar = tmpnewchar + “ 仟 ”;
break;
case 4:
tmpnewchar = tmpnewchar + “ 万 ”;
break;
case 5:
if(perchar != 0) tmpnewchar = tmpnewchar + “ 拾 ”;
break;
case 6:
if(perchar != 0) tmpnewchar = tmpnewchar + “ 佰 ”;
break;
case 7:
if(perchar != 0) tmpnewchar = tmpnewchar + “ 仟 ”;
break;
case 8:
tmpnewchar = tmpnewchar + “ 亿 ”;
break;
case 9:
tmpnewchar = tmpnewchar + “ 拾 ”;
break;
}
var newchar = tmpnewchar + newchar;
}
// 小数点之后进行转化
if(Num.indexOf(“.”) != -1) {
if(part[1].length > 2) {
// alert(“ 小数点之后只能保留两位, 系统将自动截断 ”);
part[1] = part[1].substr(0, 2)
}
for(i = 0; i < part[1].length; i++) {
tmpnewchar = “”
perchar = part[1].charAt(i)
switch(perchar) {
case “0”:
tmpnewchar = “ 零 ” + tmpnewchar;
break;
case “1”:
tmpnewchar = “ 壹 ” + tmpnewchar;
break;
case “2”:
tmpnewchar = “ 贰 ” + tmpnewchar;
break;
case “3”:
tmpnewchar = “ 叁 ” + tmpnewchar;
break;
case “4”:
tmpnewchar = “ 肆 ” + tmpnewchar;
break;
case “5”:
tmpnewchar = “ 伍 ” + tmpnewchar;
break;
case “6”:
tmpnewchar = “ 陆 ” + tmpnewchar;
break;
case “7”:
tmpnewchar = “ 柒 ” + tmpnewchar;
break;
case “8”:
tmpnewchar = “ 捌 ” + tmpnewchar;
break;
case “9”:
tmpnewchar = “ 玖 ” + tmpnewchar;
break;
}
if(i == 0) tmpnewchar = tmpnewchar + “ 角 ”;
if(i == 1) tmpnewchar = tmpnewchar + “ 分 ”;
newchar = newchar + tmpnewchar;
}
}
// 替换所有无用汉字
while(newchar.search(“ 零零 ”) != -1)
newchar = newchar.replace(“ 零零 ”, “ 零 ”);
newchar = newchar.replace(“ 零亿 ”, “ 亿 ”);
newchar = newchar.replace(“ 亿万 ”, “ 亿 ”);
newchar = newchar.replace(“ 零万 ”, “ 万 ”);
newchar = newchar.replace(“ 零元 ”, “ 元 ”);
newchar = newchar.replace(“ 零角 ”, “”);
newchar = newchar.replace(“ 零分 ”, “”);
if(newchar.charAt(newchar.length – 1) == “ 元 ”) {
newchar = newchar + “ 整 ”
}
return newchar;
}
6. Http
/**
* @param {setting}
*/
ajax(setting){
// 设置参数的初始值
var opts={
method: (setting.method || “GET”).toUpperCase(), // 请求方式
url: setting.url || “”, // 请求地址
async: setting.async || true, // 是否异步
dataType: setting.dataType || “json”, // 解析方式
data: setting.data || “”, // 参数
success: setting.success || function(){}, // 请求成功回调
error: setting.error || function(){} // 请求失败回调
}

// 参数格式化
function params_format (obj) {
var str = ”
for (var i in obj) {
str += i + ‘=’ + obj[i] + ‘&’
}
return str.split(”).slice(0, -1).join(”)
}

// 创建 ajax 对象
var xhr=new XMLHttpRequest();

// 连接服务器 open(方法 GET/POST，请求地址，异步传输)
if(opts.method == ‘GET’){
xhr.open(opts.method, opts.url + “?” + params_format(opts.data), opts.async);
xhr.send();
}else{
xhr.open(opts.method, opts.url, opts.async);
xhr.setRequestHeader(“Content-Type”,”application/x-www-form-urlencoded”);
xhr.send(opts.data);
}

/*
** 每当 readyState 改变时，就会触发 onreadystatechange 事件
** readyState 属性存储有 XMLHttpRequest 的状态信息
** 0：请求未初始化
** 1：服务器连接已建立
** 2：请求已接受
** 3 : 请求处理中
** 4：请求已完成，且相应就绪
*/
xhr.onreadystatechange = function() {
if (xhr.readyState === 4 && (xhr.status === 200 || xhr.status === 304)) {
switch(opts.dataType){
case “json”:
var json = JSON.parse(xhr.responseText);
opts.success(json);
break;
case “xml”:
opts.success(xhr.responseXML);
break;
default:
opts.success(xhr.responseText);
break;
}
}
}

xhr.onerror = function(err) {
opts.error(err);
}
}

/**
* @param {url}
* @param {setting}
* @return {Promise}
*/
fetch(url, setting) {
// 设置参数的初始值
let opts={
method: (setting.method || ‘GET’).toUpperCase(), // 请求方式
headers : setting.headers || {}, // 请求头设置
credentials : setting.credentials || true, // 设置 cookie 是否一起发送
body: setting.body || {},
mode : setting.mode || ‘no-cors’, // 可以设置 cors, no-cors, same-origin
redirect : setting.redirect || ‘follow’, // follow, error, manual
cache : setting.cache || ‘default’ // 设置 cache 模式 (default, reload, no-cache)
}
let dataType = setting.dataType || “json”, // 解析方式
data = setting.data || “” // 参数

// 参数格式化
function params_format (obj) {
var str = ”
for (var i in obj) {
str += `${i}=${obj[i]}&`
}
return str.split(”).slice(0, -1).join(”)
}

if (opts.method === ‘GET’) {
url = url + (data?`?${params_format(data)}`:”)
}else{
setting.body = data || {}
}

return new Promise((resolve, reject) => {
fetch(url, opts).then(async res => {
let data = dataType === ‘text’ ? await res.text() :
dataType === ‘blob’ ? await res.blob() : await res.json()
resolve(data)
}).catch(e => {
reject(e)
})
})

}
7. DOM
$ (selector){
var type = selector.substring(0, 1);
if (type === ‘#’) {
if (document.querySelecotor) return document.querySelector(selector)
return document.getElementById(selector.substring(1))

}else if (type === ‘.’) {
if (document.querySelecotorAll) return document.querySelectorAll(selector)
return document.getElementsByClassName(selector.substring(1))
}else{
return document[‘querySelectorAll’ ? ‘querySelectorAll’:’getElementsByTagName’](selector)
}
}

/* 检测类名 */
hasClass (ele, name) {
return ele.className.match(new RegExp(‘(\\s|^)’ + name + ‘(\\s|$)’));
}

/* 添加类名 */
addClass (ele, name) {
if (!this.hasClass(ele, name)) ele.className += ” ” + name;
}

/* 删除类名 */
removeClass (ele, name) {
if (this.hasClass(ele, name)) {
var reg = new RegExp(‘(\\s|^)’ + name + ‘(\\s|$)’);
ele.className = ele.className.replace(reg, ”);
}
}

/* 替换类名 */
replaceClass (ele, newName, oldName) {
this.removeClass(ele, oldName);
this.addClass(ele, newName);
}

/* 获取兄弟节点 */
siblings (ele) {
console.log(ele.parentNode)
var chid = ele.parentNode.children,eleMatch = [];
for(var i = 0, len = chid.length; i < len; i ++){
if(chid[i] != ele){
eleMatch.push(chid[i]);
}
}
return eleMatch;
}

/* 获取行间样式属性 */
getByStyle (obj,name){
if(obj.currentStyle){
return obj.currentStyle[name];
}else{
return getComputedStyle(obj,false)[name];
}
}
8. Storage 储存操作
class StorageFn {
constructor () {
this.ls = window.localStorage;
this.ss = window.sessionStorage;
}

/*—————–cookie———————*/
/* 设置 cookie*/
setCookie (name, value, day) {
var setting = arguments[0];
if (Object.prototype.toString.call(setting).slice(8, -1) === ‘Object’){
for (var i in setting) {
var oDate = new Date();
oDate.setDate(oDate.getDate() + day);
document.cookie = i + ‘=’ + setting[i] + ‘;expires=’ + oDate;
}
}else{
var oDate = new Date();
oDate.setDate(oDate.getDate() + day);
document.cookie = name + ‘=’ + value + ‘;expires=’ + oDate;
}

}

/* 获取 cookie*/
getCookie (name) {
var arr = document.cookie.split(‘; ‘);
for (var i = 0; i < arr.length; i++) {
var arr2 = arr[i].split(‘=’);
if (arr2[0] == name) {
return arr2[1];
}
}
return ”;
}

/* 删除 cookie*/
removeCookie (name) {
this.setCookie(name, 1, -1);
}

/*—————–localStorage———————*/
/* 设置 localStorage*/
setLocal(key, val) {
var setting = arguments[0];
if (Object.prototype.toString.call(setting).slice(8, -1) === ‘Object’){
for(var i in setting){
this.ls.setItem(i, JSON.stringify(setting[i]))
}
}else{
this.ls.setItem(key, JSON.stringify(val))
}

}

/* 获取 localStorage*/
getLocal(key) {
if (key) return JSON.parse(this.ls.getItem(key))
return null;

}

/* 移除 localStorage*/
removeLocal(key) {
this.ls.removeItem(key)
}

/* 移除所有 localStorage*/
clearLocal() {
this.ls.clear()
}

/*—————–sessionStorage———————*/
/* 设置 sessionStorage*/
setSession(key, val) {
var setting = arguments[0];
if (Object.prototype.toString.call(setting).slice(8, -1) === ‘Object’){
for(var i in setting){
this.ss.setItem(i, JSON.stringify(setting[i]))
}
}else{
this.ss.setItem(key, JSON.stringify(val))
}

}

/* 获取 sessionStorage*/
getSession(key) {
if (key) return JSON.parse(this.ss.getItem(key))
return null;

}

/* 移除 sessionStorage*/
removeSession(key) {
this.ss.removeItem(key)
}

/* 移除所有 sessionStorage*/
clearSession() {
this.ss.clear()
}

}
9. Other 其它操作
/* 获取网址参数 */
getURL(name){
var reg = new RegExp(“(^|&)”+ name +”=([^&]*)(&|$)”);
var r = decodeURI(window.location.search).substr(1).match(reg);
if(r!=null) return r[2]; return null;
}

/* 获取全部 url 参数, 并转换成 json 对象 */
getUrlAllParams (url) {
var url = url ? url : window.location.href;
var _pa = url.substring(url.indexOf(‘?’) + 1),
_arrS = _pa.split(‘&’),
_rs = {};
for (var i = 0, _len = _arrS.length; i < _len; i++) {
var pos = _arrS[i].indexOf(‘=’);
if (pos == -1) {
continue;
}
var name = _arrS[i].substring(0, pos),
value = window.decodeURIComponent(_arrS[i].substring(pos + 1));
_rs[name] = value;
}
return _rs;
}

/* 删除 url 指定参数，返回 url*/
delParamsUrl(url, name){
var baseUrl = url.split(‘?’)[0] + ‘?’;
var query = url.split(‘?’)[1];
if (query.indexOf(name)>-1) {
var obj = {}
var arr = query.split(“&”);
for (var i = 0; i < arr.length; i++) {
arr[i] = arr[i].split(“=”);
obj[arr[i][0]] = arr[i][1];
};
delete obj[name];
var url = baseUrl + JSON.stringify(obj).replace(/[\”\{\}]/g,””).replace(/\:/g,”=”).replace(/\,/g,”&”);
return url
}else{
return url;
}
}

/* 获取十六进制随机颜色 */
getRandomColor () {
return ‘#’ + (function(h) {
return new Array(7 – h.length).join(“0”) + h;
})((Math.random() * 0x1000000 << 0).toString(16));
}

/* 图片加载 */
imgLoadAll(arr,callback){
var arrImg = [];
for (var i = 0; i < arr.length; i++) {
var img = new Image();
img.src = arr[i];
img.onload = function(){
arrImg.push(this);
if (arrImg.length == arr.length) {
callback && callback();
}
}
}
}

/* 音频加载 */
loadAudio(src, callback) {
var audio = new Audio(src);
audio.onloadedmetadata = callback;
audio.src = src;
}

/*DOM 转字符串 */
domToStirng(htmlDOM){
var div= document.createElement(“div”);
div.appendChild(htmlDOM);
return div.innerHTML
}

/* 字符串转 DOM*/
stringToDom(htmlString){
var div= document.createElement(“div”);
div.innerHTML=htmlString;
return div.children[0];
}

/**
* 光标所在位置插入字符，并设置光标位置
*
* @param {dom} 输入框
* @param {val} 插入的值
* @param {posLen} 光标位置处在插入的值的哪个位置
*/
setCursorPosition (dom,val,posLen) {
var cursorPosition = 0;
if(dom.selectionStart){
cursorPosition = dom.selectionStart;
}
this.insertAtCursor(dom,val);
dom.focus();
console.log(posLen)
dom.setSelectionRange(dom.value.length,cursorPosition + (posLen || val.length));
}

/* 光标所在位置插入字符 */
insertAtCursor(dom, val) {
if (document.selection){
dom.focus();
sel = document.selection.createRange();
sel.text = val;
sel.select();
}else if (dom.selectionStart || dom.selectionStart == ‘0’){
let startPos = dom.selectionStart;
let endPos = dom.selectionEnd;
let restoreTop = dom.scrollTop;
dom.value = dom.value.substring(0, startPos) + val + dom.value.substring(endPos, dom.value.length);
if (restoreTop > 0){
dom.scrollTop = restoreTop;
}
dom.focus();
dom.selectionStart = startPos + val.length;
dom.selectionEnd = startPos + val.length;
} else {
dom.value += val;
dom.focus();
}
}
CSS
1. pc-reset PC 样式初始化
/* normalize.css */

html {
line-height: 1.15;
/* 1 */
-ms-text-size-adjust: 100%;
/* 2 */
-webkit-text-size-adjust: 100%;
/* 2 */
}

body {
margin: 0;
}

article,
aside,
footer,
header,
nav,
section {
display: block;
}

h1 {
font-size: 2em;
margin: 0.67em 0;
}

figcaption,
figure,
main {
/* 1 */
display: block;
}

figure {
margin: 1em 40px;
}

hr {
box-sizing: content-box;
/* 1 */
height: 0;
/* 1 */
overflow: visible;
/* 2 */
}

pre {
font-family: monospace, monospace;
/* 1 */
font-size: 1em;
/* 2 */
}

a {
background-color: transparent;
/* 1 */
-webkit-text-decoration-skip: objects;
/* 2 */
}

abbr[title] {
border-bottom: none;
/* 1 */
text-decoration: underline;
/* 2 */
text-decoration: underline dotted;
/* 2 */
}

b,
strong {
font-weight: inherit;
}

b,
strong {
font-weight: bolder;
}

code,
kbd,
samp {
font-family: monospace, monospace;
/* 1 */
font-size: 1em;
/* 2 */
}

dfn {
font-style: italic;
}

mark {
background-color: #ff0;
color: #000;
}

small {
font-size: 80%;
}

sub,
sup {
font-size: 75%;
line-height: 0;
position: relative;
vertical-align: baseline;
}

sub {
bottom: -0.25em;
}

sup {
top: -0.5em;
}

audio,
video {
display: inline-block;
}

audio:not([controls]) {
display: none;
height: 0;
}

img {
border-style: none;
}

svg:not(:root) {
overflow: hidden;
}

button,
input,
optgroup,
select,
textarea {
font-family: sans-serif;
/* 1 */
font-size: 100%;
/* 1 */
line-height: 1.15;
/* 1 */
margin: 0;
/* 2 */
}

button,
input {
/* 1 */
overflow: visible;
}

button,
select {
/* 1 */
text-transform: none;
}

button,
html [type=”button”],

/* 1 */

[type=”reset”],
[type=”submit”] {
-webkit-appearance: button;
/* 2 */
}

button::-moz-focus-inner,
[type=”button”]::-moz-focus-inner,
[type=”reset”]::-moz-focus-inner,
[type=”submit”]::-moz-focus-inner {
border-style: none;
padding: 0;
}

button:-moz-focusring,
[type=”button”]:-moz-focusring,
[type=”reset”]:-moz-focusring,
[type=”submit”]:-moz-focusring {
outline: 1px dotted ButtonText;
}

fieldset {
padding: 0.35em 0.75em 0.625em;
}

legend {
box-sizing: border-box;
/* 1 */
color: inherit;
/* 2 */
display: table;
/* 1 */
max-width: 100%;
/* 1 */
padding: 0;
/* 3 */
white-space: normal;
/* 1 */
}

progress {
display: inline-block;
/* 1 */
vertical-align: baseline;
/* 2 */
}

textarea {
overflow: auto;
}

[type=”checkbox”],
[type=”radio”] {
box-sizing: border-box;
/* 1 */
padding: 0;
/* 2 */
}

[type=”number”]::-webkit-inner-spin-button,
[type=”number”]::-webkit-outer-spin-button {
height: auto;
}

[type=”search”] {
-webkit-appearance: textfield;
/* 1 */
outline-offset: -2px;
/* 2 */
}

[type=”search”]::-webkit-search-cancel-button,
[type=”search”]::-webkit-search-decoration {
-webkit-appearance: none;
}

::-webkit-file-upload-button {
-webkit-appearance: button;
/* 1 */
font: inherit;
/* 2 */
}

details,

/* 1 */

menu {
display: block;
}

summary {
display: list-item;
}

canvas {
display: inline-block;
}

template {
display: none;
}

[hidden] {
display: none;
}

/* reset */

html,
body,
h1,
h2,
h3,
h4,
h5,
h6,
div,
dl,
dt,
dd,
ul,
ol,
li,
p,
blockquote,
pre,
hr,
figure,
table,
caption,
th,
td,
form,
fieldset,
legend,
input,
button,
textarea,
menu {
margin: 0;
padding: 0;
box-sizing: border-box;
}

2. Phone-reset
/* normalize.css */

html {
line-height: 1.15;
/* 1 */
-ms-text-size-adjust: 100%;
/* 2 */
-webkit-text-size-adjust: 100%;
/* 2 */
}

body {
margin: 0;
}

article,
aside,
footer,
header,
nav,
section {
display: block;
}

h1 {
font-size: 2em;
margin: 0.67em 0;
}

figcaption,
figure,
main {
/* 1 */
display: block;
}

figure {
margin: 1em 40px;
}

hr {
box-sizing: content-box;
/* 1 */
height: 0;
/* 1 */
overflow: visible;
/* 2 */
}

pre {
font-family: monospace, monospace;
/* 1 */
font-size: 1em;
/* 2 */
}

a {
background-color: transparent;
/* 1 */
-webkit-text-decoration-skip: objects;
/* 2 */
}

abbr[title] {
border-bottom: none;
/* 1 */
text-decoration: underline;
/* 2 */
text-decoration: underline dotted;
/* 2 */
}

b,
strong {
font-weight: inherit;
}

b,
strong {
font-weight: bolder;
}

code,
kbd,
samp {
font-family: monospace, monospace;
/* 1 */
font-size: 1em;
/* 2 */
}

dfn {
font-style: italic;
}

mark {
background-color: #ff0;
color: #000;
}

small {
font-size: 80%;
}

sub,
sup {
font-size: 75%;
line-height: 0;
position: relative;
vertical-align: baseline;
}

sub {
bottom: -0.25em;
}

sup {
top: -0.5em;
}

audio,
video {
display: inline-block;
}

audio:not([controls]) {
display: none;
height: 0;
}

img {
border-style: none;
}

svg:not(:root) {
overflow: hidden;
}

button,
input,
optgroup,
select,
textarea {
font-family: sans-serif;
/* 1 */
font-size: 100%;
/* 1 */
line-height: 1.15;
/* 1 */
margin: 0;
/* 2 */
}

button,
input {
/* 1 */
overflow: visible;
}

button,
select {
/* 1 */
text-transform: none;
}

button,
html [type=”button”],

/* 1 */

[type=”reset”],
[type=”submit”] {
-webkit-appearance: button;
/* 2 */
}

button::-moz-focus-inner,
[type=”button”]::-moz-focus-inner,
[type=”reset”]::-moz-focus-inner,
[type=”submit”]::-moz-focus-inner {
border-style: none;
padding: 0;
}

button:-moz-focusring,
[type=”button”]:-moz-focusring,
[type=”reset”]:-moz-focusring,
[type=”submit”]:-moz-focusring {
outline: 1px dotted ButtonText;
}

fieldset {
padding: 0.35em 0.75em 0.625em;
}

legend {
box-sizing: border-box;
/* 1 */
color: inherit;
/* 2 */
display: table;
/* 1 */
max-width: 100%;
/* 1 */
padding: 0;
/* 3 */
white-space: normal;
/* 1 */
}

progress {
display: inline-block;
/* 1 */
vertical-align: baseline;
/* 2 */
}

textarea {
overflow: auto;
}

[type=”checkbox”],
[type=”radio”] {
box-sizing: border-box;
/* 1 */
padding: 0;
/* 2 */
}

[type=”number”]::-webkit-inner-spin-button,
[type=”number”]::-webkit-outer-spin-button {
height: auto;
}

[type=”search”] {
-webkit-appearance: textfield;
/* 1 */
outline-offset: -2px;
/* 2 */
}

[type=”search”]::-webkit-search-cancel-button,
[type=”search”]::-webkit-search-decoration {
-webkit-appearance: none;
}

::-webkit-file-upload-button {
-webkit-appearance: button;
/* 1 */
font: inherit;
/* 2 */
}

details,

/* 1 */

menu {
display: block;
}

summary {
display: list-item;
}

canvas {
display: inline-block;
}

template {
display: none;
}

[hidden] {
display: none;
}

/* reset */

html,
body {
/* 禁止选中文本 */
-webkit-user-select: none;
user-select: none;
font: Oswald, ‘Open Sans’, Helvetica, Arial, sans-serif
}

/* 禁止长按链接与图片弹出菜单 */

a,
img {
-webkit-touch-callout: none;
}

/*ios android 去除自带阴影的样式 */

a,
input {
-webkit-tap-highlight-color: rgba(0, 0, 0, 0);
}

input[type=”text”] {
-webkit-appearance: none;
}
3. 公共样式提取
/* 禁止选中文本 */
.usn{
-webkit-user-select:none;
-moz-user-select:none;
-ms-user-select:none;
-o-user-select:none;
user-select:none;
}
/* 浮动 */
.fl {float: left;}
.fr {float: right;}
.cf {zoom: 1;}
.cf:after {
content:”.”;
display:block;
clear:both;
visibility:hidden;
height:0;
overflow:hidden;
}

/* 元素类型 */
.db {display: block;}
.dn {display: none;}
.di {display: inline}
.dib {display: inline-block;}
.transparent {opacity: 0}

/* 文字排版、颜色 */
.f12 {font-size:12px}
.f14 {font-size:14px}
.f16 {font-size:16px}
.f18 {font-size:18px}
.f20 {font-size:20px}
.fb {font-weight:bold}
.fn {font-weight:normal}
.t2 {text-indent:2em}
.red,a.red {color:#cc0031}
.darkblue,a.darkblue {color:#039}
.gray,a.gray {color:#878787}
.lh150 {line-height:150%}
.lh180 {line-height:180%}
.lh200 {line-height:200%}
.unl {text-decoration:underline;}
.no_unl {text-decoration:none;}
.tl {text-align: left;}
.tc {text-align: center;}
.tr {text-align: right;}
.tj {text-align: justify; text-justify: inter-ideograph;}
.wn {/* 强制不换行 */
word-wrap:normal;
white-space:nowrap;
}
.wb {/* 强制换行 */
white-space:normal;
word-wrap:break-word;
word-break:break-all;
}
.wp {/* 保持空白序列 */
overflow:hidden;text-align:left;white-space:pre-wrap;word-wrap:break-word;word-break:break-all;
}
.wes {/* 多出部分用省略号表示 , 用于一行 */
overflow:hidden;
word-wrap:normal;
white-space:nowrap;
text-overflow:ellipsis;
}
.wes-2 {/* 适用于 webkit 内核和移动端 */
display: -webkit-box;
-webkit-box-orient: vertical;
-webkit-line-clamp: 2;
overflow: hidden;
}
.wes-3 {
display: -webkit-box;
-webkit-box-orient: vertical;
-webkit-line-clamp: 3;
overflow: hidden;
}
.wes-4 {
display: -webkit-box;
-webkit-box-orient: vertical;
-webkit-line-clamp: 4;
overflow: hidden;
}

/* 溢出样式 */
.ofh {overflow: hidden;}
.ofs {overflow: scroll;}
.ofa {overflow: auto;}
.ofv {overflow: visible;}

/* 定位方式 */
.ps {position: static;}
.pr {position: relative;zoom:1;}
.pa {position: absolute;}
.pf {position: fixed;}

/* 垂直对齐方式 */
.vt {vertical-align: top;}
.vm {vertical-align: middle;}
.vb {vertical-align: bottom;}

/* 鼠标样式 */
.csd {cursor: default;}
.csp {cursor: pointer;}
.csh {cursor: help;}
.csm {cursor: move;}

/* flex 布局 */
.df-sb {
display:flex;
align-items: center;
justify-content: space-between;
}
.df-sa {
display:flex;
align-items: center;
justify-content: space-around;
}

/* 垂直居中 */
.df-c {
display: flex;
align-items: center;
justify-content: center;
}
.tb-c {
text-align:center;
display:table-cell;
vertical-align:middle;
}
.ts-c {
position: absolute;
left: 50%; top: 50%;
transform: translate(-50%, -50%);
}
.ts-mc {
position: absolute;
left: 0;right: 0;
bottom: 0; top: 0;
margin: auto;
}

/* 辅助 */
.mask-fixed-wrapper {
width: 100%;
height: 100%;
position: fixed;
left:0;top:0;
background: rgba(0, 0, 0, 0.65);
z-index: 999;
}
.bg-cover {
background-size: cover;
background-repeat: no-repeat;
background-position: center center;
}
.bg-cover-all {
background-size: 100% 100%;
background-repeat: no-repeat;
background-position: center center;
}
*