day-3 json操作

import json
# json.dumps()#把字典转成字符串
# json.load()#把字符串转换成字典
d = {
    "xiaoming":"123456",
    "xiaohei":"123456",
    "张三":"111111",
    "wangwu":"哈哈哈"
}
with open('a.json','w',encoding='utf-8') as fw:
    #  方法1
    # 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
    # fw.write(j)
#     方法2
    json.dump(d,fw,ensure_ascii=False,indent=4)#不需要write()


with open('a.txt',encoding='utf-8') as fr:
    # 方法1
    # result = fr.read()
    # str = json.loads(result)
    # 方法2
    str = json.load(fr)#自动读取，不需要手动read()
    print(str)
    print(type(str))