# 以写入的方式打开文件
f = open('test.txt', mode='a', encoding='utf-8')
# 写入
write_date = ['你收啊', '服务器', '客户端', 'socket']
for i in write_date:
    f.write(i + '\n')
# 关闭文件
f.close()

fr = open('test.txt', mode='r', encoding='utf-8')
read_date = fr.read()
print(read_date)
fr.close()