day-3 json操作

 1 import json
 2 # json.dumps()#把字典转成字符串
 3 # json.load()#把字符串转换成字典
 4 d = {
 5     "xiaoming":"123456",
 6     "xiaohei":"123456",
 7     "张三":"111111",
 8     "wangwu":"哈哈哈"
 9 }
10 with open('a.json','w',encoding='utf-8') as fw:
11     #  方法1
12     # j = json.dumps(d,ensure_ascii=False,indent=4)#ensure_ascii=False：显示中文，indent=4：key前加4个空格
13     # fw.write(j)
14 #     方法2
15     json.dump(d,fw,ensure_ascii=False,indent=4)#不需要write()
16 
17 
18 with open('a.txt',encoding='utf-8') as fr:
19     # 方法1
20     # result = fr.read()
21     # str = json.loads(result)
22     # 方法2
23     str = json.load(fr)#自动读取，不需要手动read()
24     print(str)
25     print(type(str))