josn基本操作

1.導入import json

2.字典轉json：json.dumps(dict,ensure_ascii=False)，加,ensure_ascii=False轉換之后無中文亂碼

3.json轉字典：json.loads(str)

4.json轉字典：requests.get().josn()

5.返回字符串： requests.get().text

舉例源碼

#!/usr/bin/python3

# encoding:utf-8

import json

import requests

class jsonC():

def __init__(self):

self.url = 'http://wthrcdn.etouch.cn/weather_mini?city=北京'

self.geturl = requests.get(self.url)

#字典轉json,因為python沒json類型所以str表示

def dict_json(self):

d = {"name":"張三","age":18}

j = json.dumps(d,ensure_ascii=False)

print('dict_json函數：類型：',type(d),'轉類型',type(j),'\n',j)

#json轉字典

def json_dict(self):

s = '{"name":"張三","age":18}'

d = json.loads(s)

print('json_dict函數：類型：',type(s),'轉類型',type(d))

#接口調用直接返回 字典(dict)

def get_json(self):

d = self.geturl.json()

print('get_json函數類型：',type(d))

#接口調用直接返回字符串

def get_str(self):

s = self.geturl.text

print('get_str函數返回類型：',type(s))

if __name__=="__main__":

js = jsonC()

js.dict_json()

js.json_dict()

js.get_json()

js.get_str()

運行結果

dict_json函數：類型： 轉類型

{"name": "張三", "age": 18}

json_dict函數：類型： 轉類型

get_json函數類型：

get_str函數返回類型：

調用get例子

http://wthrcdn.etouch.cn/weather_mini?city=北京

返回json值：

{"data":

{"yesterday":

{"date":"28日星期六","high":"高溫 30℃","fx":"西南風","low":"低溫 17℃","fl":"","type":"晴"},

"city":"北京","forecast":

[

{"date":"29日星期天","high":"高溫 29℃","fengli":"","low":"低溫 18℃","fengxiang":"南風","type":"晴"},

{"date":"30日星期一","high":"高溫 28℃","fengli":"","low":"低溫 19℃","fengxiang":"南風","type":"晴"},

{"date":"1日星期二","high":"高溫 29℃","fengli":"","low":"低溫 20℃","fengxiang":"南風","type":"多云"},

{"date":"2日星期三","high":"高溫 29℃","fengli":"","low":"低溫 17℃","fengxiang":"南風","type":"晴"},

{"date":"3日星期四","high":"高溫 30℃","fengli":"","low":"低溫 12℃","fengxiang":"東南風","type":"多云"}

],"ganmao":"各項氣象條件適宜，無明顯降溫過程，發生感冒機率較低。","wendu":"29"

},"status":1000,"desc":"OK"

}

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