简明python教程txt-Python：将 list 写入一个 txt 文件四种方法

一个数据list of dict如下

a = [

{"Jodie1": "123"},

{"Jodie2": "456"},

{"Jodie3": "789"},

]

写入到本地一个txt文件，内容格式如下：

Jodie1,123

Jodie2,456

Jodie3,789 """

import re

import json

a = [

{"Jodie1": "123"},

{"Jodie2": "456"},

{"Jodie3": "789"},

]

方法一

with open('1.txt', 'w') as f:

for i in range(len(a)):

for key, values in a[i].items():

print(key+","+values+" ")

f.write(key+","+values+" ")

方法二

file = open('2.txt', 'w')

for i in range(len(a)):

s = str(a[i]).replace('{', '').replace('}', '').replace("'", '').replace(':', ',') + ' '

file.write(s)

file.close()

方法三

file3 = open('3.txt', 'w')

for i in range(len(a)):

s = (re.sub(r"['{ },]*", '', str(a[i])) + ' ').replace(':', ',')

file3.write(s)

file3.close()

方法四

with open('4.txt', 'w') as f:

for i in range(len(a)):

s = (re.sub(r"['{ },]*", '', str(a[i])) + ' ').replace(':', ',')

f.write(s)