一，json.load()和json.dump只要用于读写json数据

1json.load()

从文件中读取json字符串

with open('data.json','r',encoding='utf-8') as f
print(json.load(f))

2json.dump()

将json字符串写入到文件中

content="{'name':'zhangsan','age':18}"
with open('text.json','w',encoding='utf-8') as f:
json.dump(content,f)

二，json.loads和json.dumps主要用于字符串和字典之间的类型转换

3json.loads()

将json字符串转换成字典类型

content="{'name':'zhangsan','age':18}"
json.loads(content)

3json.dumps()

将字典类型转换成json字符串

content={'name':'zhangsan','age':18}#假设这个是python定义的字典
json.dumps(content)

 三，练习
编写单词查询系统

 1编写一个json格式的文件：

{
  "one": ["数字1"],
  "two": ["数字2"],
  "too": ["太","也","非常"]
}

2编写python方法：

import json
from difflib import get_close_matches
data = json.load(open("data.json","r",encoding="utf-8"))
def translate(word):
    word = word.lower()
    if word in data:
        return data[word]
    elif len(get_close_matches(word,data.keys(),cutoff=0.5)) > 0:
        yes_no = input("你要查询的是不是%s?,请输入yes或no:"%get_close_matches(word,data.keys(),cutoff=0.5))
        yes_no = yes_no.lower()
        if yes_no == "yes":
            return data[get_close_matches(word,data.keys(),cutoff=0.5)[0]]
    else:
        return "你要查找的内容库里没有"
word = input("请输入你要查询的单词")
output = translate(word)
if type(output) == list:
    for item in output:
        print(item)
    else:
        print(output)