先看下效果图：
用到的模块：
- PyMySQL
- requests
- threading
- wxpy
要实现下面的示例，首先是有两大块中央
- 获取天气信息
- 通过微信将天气信息发送进来
而获取天气信息又包含几个小的须要留神的中央
-
获取天气信息
- 获取天气信息的接口
- 获取天气信息的城市
- 获取所在城市的城市码
如果咱们给多集体发送天气情况，这几个人来自不同的城市，那么咱们不可能每次都要输出城市名，而后查找城市码，而后再拜访接口，获取天气情况，这样会十分的麻烦，所以咱们须要思考将城市名跟城市码一一对应起来，说到一一对应，首先想到的数据结构便是字典，所以咱们能够将这些信息存入一个字典里，而后长久化到一个文件中，这样便不便很多
首先咱们获取最新的 city 表，这个表是一个 list 类型，大体格局如下：
[
{
"id": 1,
"pid": 0,
"city_code": "101010100",
"city_name": "北京",
"post_code": "100000",
"area_code": "010",
"ctime": "2019-07-11 17:30:06"
},
{
"id": 2,
"pid": 0,
"city_code": "","city_name":" 安徽 ","post_code": null,"area_code": null,"ctime": null
}
]咱们就简略的粘贴复制，放到一个空的列表中，如下所示，将所有的城市信息放到列表 citycode 中
citycode = [
{
"id": 1,
"pid": 0,
"city_code": "101010100",
"city_name": "北京",
"post_code": "100000",
"area_code": "010",
"ctime": "2019-07-11 17:30:06"
},
...
...
...
...
...
...
{
"id": 2,
"pid": 0,
"city_code": "None",
"city_name": "安徽",
"post_code": "null",
"area_code": "null",
"ctime": "null"
}
]
cityinfo = {}
#将城市名和城市代码写入 json 文件中
with open('city_for_code.json','w',encoding='utf-8') as f:
for i in citycode:
name = i["city_name"]
code = i["city_code"]
cityinfo[name] = code
f.write(str(cityinfo))
#测试是否能读取
with open('city_for_code.json','r+',encoding='utf-8') as file:
data_dst = file.readlines()
d = eval(data_dst[0])而后就是一顿解决，只把咱们所需的 city_name 和 city_code 这俩字段取出即可，随后写入文件中。如果读取的话就依照下面办法去读取，须要留神的是，应用 open() 办法读取文件，失去的内容是一个列表，咱们须要通过 eval() 办法转化成 dict 类型。
这是把 city_name 和 city_code 放到一个文件中的办法，另外咱们也能够放到数据库中，这里以 MySQL 为例，装置 PyMySQL 模块
import pymysql
db_parames = {
'host': 'localhost',
'user': 'root',
'password': '123456',
'database': 'city_code_info'
}
#连贯数据库
conn = pymysql.connect(**db_parames)
#创立游标对象，增删改查都在游标上进行
cursor = conn.cursor()
#表存在，就删除
cursor.execute("DROP TABLE IF EXISTS city_code")
#建表语句
create_table_sql = """CREATE TABLE `city_code` (`city_name` varchar(20) DEFAULT NULL,
`city_code` varchar(25) DEFAULT NULL
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;
"""
#建表
cursor.execute(create_table_sql)
#插入数据
with open('city_for_code.json','r+',encoding='utf-8') as f:
origin_data = f.readlines()
current_data = eval(origin_data[0]) #读取的内容是一个列表，且只蕴含一个元素
#print(current_data.get('北京','Not Exists.'))
for name, code in current_data.items():
sql = """INSERT INTO city_code(city_name, city_code) VALUES ('%s','%s')""" % (name, code)
try:
cursor.execute(sql)
except:
conn.rollback()
conn.commit()
conn.close()执行这个 python 程序就能够将文件中的城市名跟城市码存到库中，当然咱们也能够间接获取到城市名和城市码，而后跳过文件长久化这一步，间接把这两个字段取出存进去，然而思考着代码要多练多写，就多此一举了一下。
上面是输出城市名就能失去城市码的代码块：
import pymysql
def get_city_code(city_name):
db_parames = {
'host': 'localhost',
'user': 'root',
'password': '123456',
'database': 'city_code_info'
}
#连贯数据库
conn = pymysql.connect(**db_parames)
#创立游标对象，增删改查都在游标上进行
cursor = conn.cursor()
#创立查问语句
select_sql = "SELECT * FROM city_code where city_name='%s'"%(city_name)
try:
cursor.execute(select_sql)
result = cursor.fetchall()
for row in result:
city_code = row[1]
return city_code
except:
return "Error: unable fetch data!"而后是依据输出的城市码来获取天气情况：
import requests
def get_weather(city_name,get_date_time=3):
city_code = get_city_code(city_name)
url = 'http://t.weather.sojson.com/api/weather/city/%s'%(city_code)
header = {'user-agent': 'Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/74.0.3729.169 Safari/537.36'
}
response = requests.get(url,header)
response.encoding = 'utf-8'
weather = response.json()
day = {1: '今天', 2: '先天', 3: '大后天'}
weather_lst = []
for num in range(get_date_time):
City = weather["cityInfo"]["city"]
Weatherganmao = weather["data"]["ganmao"]
Weatherquality = weather["data"]["quality"]
Weathershidu = weather["data"]["shidu"]
Weatherwendu = weather["data"]["wendu"]
Weatherpm25 = str(weather["data"]["pm25"])
Weatherpm10 = str(weather["data"]["pm10"])
Dateymd = weather["data"]["forecast"][num]["ymd"]
Dateweek = weather["data"]["forecast"][num]["week"]
Sunrise = weather["data"]["forecast"][num]["sunrise"]
Sunset = weather["data"]["forecast"][num]["sunset"]
Windfx = weather["data"]["forecast"][num]["fx"]
Windf1 = weather["data"]["forecast"][num]["fl"]
Weathertype = weather["data"]["forecast"][num]["type"]
Weathernotice = weather["data"]["forecast"][num]["notice"]
Weatherhigh = weather["data"]["forecast"][num]["high"]
Weatherlow = weather["data"]["forecast"][num]["low"]
if num == 0:
result = '今日天气预报' + '\n' \
+ '日期：' + Dateymd + '' + Dateweek +' '+ City +'\n' \
+ '天气：' + Weathertype + '' + Windfx +' '+ Windf1 +' '+ Weathernotice +'\n' \
+ '以后温度：' + Weatherwendu + '℃' + '\n' \
+ '空气湿度：' + Weathershidu + '\n' \
+ '温度范畴：' + Weatherlow + ''+'~'+'' + Weatherhigh + '\n' \
+ '净化指数：' + 'PM2.5:' + Weatherpm25 + '' +'PM10: '+ Weatherpm10 +'\n' \
+ '空气质量：' + Weatherquality + '\n' \
+ '日出工夫：' + Sunrise + '\n' \
+ '日落工夫：' + Sunset + '\n' \
+ '舒适提醒：' + Weatherganmao
else:
which_day = day.get(num,'超出范围')
result = '\n' + which_day + '' +' 天气预报 '+'\n' \
+ '日期：' + Dateymd + '' + Dateweek +' '+ City +'\n' \
+ '天气：' + Weathertype + '' + Windfx +' '+ Windf1 +' '+ Weathernotice +'\n' \
+ '温度范畴：' + Weatherlow + ''+'~'+'' + Weatherhigh + '\n' \
+ '日出工夫：' + Sunrise + '\n' \
+ '日落工夫：' + Sunset + '\n' \
+ '舒适提醒：' + Weatherganmao
weather_lst.append(result)
weather_str = '' #因为默认要输入三天的天气情况，所以咱们须要创立一个空字符串，而后每迭代一次，就将天气情况拼接到空字符串中。for msg in weather_lst:
weather_str += msg + '\n'
return weather_str上面是发送微信音讯
from wxpy import *
def send_wx(city_name, who):
bot = Bot(cache_path=True)
#bot = Bot(console_qr=2, cache_path='botoo.pkl')
my_friend = bot.friends().search(who)[0]
msg = get_weather(city_name)
try:
my_friend.send(msg)
except:
my_friend = bot.friends().search('fei')[0]
my_friend.send(u"发送失败")而后咱们还须要写一个定时器，每隔一段时间便要发送一次
from threading import Timer
def auto_send():
city_name = '设置要发送的城市'
friend_list = ['要发送的人']
for who in friend_list:
send_wx(city_name,who)
global timer
timer = Timer(1,auto_send)
timer.start()最初执行程序
if __name__ == '__main__':
timer = Timer(1,auto_send)
timer.start() 欢送各位朋友关注我的公众号，来一起学习提高哦
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