共计 1391 个字符,预计需要花费 4 分钟才能阅读完成。
字符串分割
//php | |
$str = 'one,two,three,four'; | |
$re = explode(',',$str);//Array['one','two','three','four',] | |
//js | |
var str = "2:3:4:5".split(":") // 将返回 ["2", "3", "4", "5"] | |
//Golang | |
s := strings.Split("abc,abc", "") | |
fmt.Println(s, len(s))//[a b c , a b c] 7 // 返回 7 个数组元素 | |
//python | |
#!/usr/bin/python | |
# -*- coding: UTF-8 -*- | |
str = "Line1-abcdef \nLine2-abc \nLine4-abcd"; | |
print str.split( ); # 以空格为分隔符,包含 \n | |
print str.split(' ', 1); # 以空格为分隔符,分隔成两个 |
数组转字符串
//php | |
$array = array('lastname', 'email', 'phone'); | |
$comma_separated = implode(",", $array);// "lastname,email,phone" | |
//js | |
var array = ["2", "3", "4", "5"]; | |
var str = array.join(",");//"2,3,4,5" | |
//Golang | |
res_two := []string {"get", "post"} | |
fmt.Println(strings.Join(res_one, ","))//"get,post" | |
//python | |
list3 =['www', 'google', 'com'] | |
str4 = ".".join(list3) //www.google.com |
类型转换
//php | |
$str = "100"; | |
$int = (int)$str;100 | |
$str1 = (string)$int;//"100" | |
//js | |
var a = parseInt("10");// 10 | |
var b = String(12345);// "12345" | |
//Golang | |
#string 到 int | |
int,err:=strconv.Atoi(string) | |
#string 到 int64 | |
int64, err := strconv.ParseInt(string, 10, 64) | |
#int 到 string | |
string:=strconv.Itoa(int) | |
#int64 到 string | |
string:=strconv.FormatInt(int64,10) | |
//python | |
字符串 str 转换成 int: int_value = int(str_value) | |
int 转换成字符串 str: str_value = str(int_value) | |
循环 for
//Golang | |
countryCapitalMap := map[string]string{"France": "Paris", "Italy": "Rome", "Japan": "Tokyo", "India": "New delhi"} | |
fmt.Println("原始地图") | |
/* 打印地图 单一值的时候引用 index */ | |
for country := range countryCapitalMap {fmt.Println(country, "首都是", countryCapitalMap [ country]) | |
} |
vue 常用
@keyup.enter="searchList" | |
clearable |
正文完