Python if 语句说 2 个字符串不相同

Question

import time
#settings file (file with username/password)
settings = "settings.txt"
#set true to skip login
login = False
while not login:

    print("""
                        /------------------------------\\\n
                        /                              \\\n
                        /  Please Enter Your Username  \\\n
                        /                              \\\n
                        /                              \\\n
                        /------------------------------\\\n
    """)
    username = input()
    print("""\n\n\n\n\n\n\n\n
                        /------------------------------\\\n
                        /                              \\\n
                        /  Please Enter Your Password  \\\n
                        /                              \\\n
                        /                              \\\n
                        /------------------------------\\\n
    """)
    password = input()
    #open file in read and write mode
    file = open(settings, "r+")
    for line in file:
        if "username: " in line:
            line = line.replace("username: ", "")
            if username == line:
                print("test")
file.close()

当我运行它并全部填写时，它不会打印测试我正在输入用户名，但它不会工作。它到达 if username == 行:
打印(“测试”)并且不打印测试

脚本/应用程序是我学校的作业

这是设置文件

username: username
password: password

Answer 1

首先您需要检查用户名是否在txt 文件中!那么你在行尾有 \n 或使用 line.strip() 删除'\n'!所以将 if 语句更改为:

if username+'\n' == line:  #if user name is txt use 'username' 

或

if username == line.strip():