Question

怎么从txt里面把字典取出来，在python里面改动之后再存回原txt文件啊？

比如txt文件中只有{"100":10}，把其中的10改为15再存回去。

Answer 1

with open(r'd:/txt.txt','r') as f:
d=eval(f.read())
d['100']=15
with open(r'd:/outtxt.txt','w') as f1:
f1.write(repr(d))

Answer 2

import json
with open(路径,'r',encoding='utf8)as fr:
(缩进)data = json.load(fr)
data["100"] = 15
with open(路径,'w',encoding='utf8)as fw:
(缩进)json.dump(data,fw)

Answer 3