读写TXT

import random
import re

# list1 = [
#     'a', '1', 'A',
#     'b', '2', 'B',
#     'c', '3', 'C',
#     'd', '4', 'D',
# ]
'''
# 循环写入
for i in range(100):
    # a是可重复。w是覆盖
    with open('txt.txt', 'a')as f:
        # \n换行
        f.writelines(str(i)+'\n')
'''

'''
for item in list1:
    with open('txt.txt', 'a') as f:
        f.writelines('\n' + item)
'''
'''
# 循环读取
for line in open('txt.txt'):
    # 去除首尾空格
    print(line.strip())
    # 去除首尾0
    print(line.strip('0'))
'''


def proxy():
    list1 = []
    for lines in open('txt.txt'):
        lines = lines.strip()
        list1.append(lines)
        proxy = random.choice(list1)
    print(proxy)


if __name__ == '__main__':
    proxy()