如何將字典保存到文件？ - How to save a dictionary to a file?

問題：

I have problem with changing a dict value and saving the dict to a text file (the format must be same), I only want to change the member_phone field.我在更改 dict 值並將 dict 保存到文本文件（格式必須相同）時member_phone ，我只想更改member_phone字段。

My text file is the following format:我的文本文件格式如下：

memberID:member_name:member_email:member_phone

and I split the text file with:我將文本文件拆分爲：

mdict={}
for line in file:
    x=line.split(':')
    a=x[0]
    b=x[1]
    c=x[2]
    d=x[3]
    e=b+':'+c+':'+d

    mdict[a]=e

When I try change the member_phone stored in d , the value has changed not flow by the key,當我嘗試更改存儲在d的member_phone ，該值已更改而不是按鍵流動，

def change(mdict,b,c,d,e):
    a=input('ID')
    if a in mdict:
        d= str(input('phone'))
        mdict[a]=b+':'+c+':'+d
    else:
        print('not')

and how to save the dict to a text file with same format?以及如何將dict保存到具有相同格式的文本文件中？

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解決方案：

參考一： https://en.stackoom.com/question/1IZ8E
參考二： https://stackoom.com/question/1IZ8E