python - 列表对象没有属性分割

Question

基本上就是标题所说的:我正在尝试创建一个程序来检测文件中的用户名和密码。但是，每当我运行它时，都会出现以下错误:

Traceback (most recent call last):
  File "C:/Users/tom11/Desktop/Data Login.py", line 33, in <module>
    content  = raw.split(",")
AttributeError: 'list' object has no attribute 'split'

这是出错的代码:

UCheck = ""
PCheck = ""
Username = input("Username: ")
Attempts = 3
while UCheck != "Y":
    lines = True
    f = open('Data.txt', 'r+')
    while lines:
        raw = f.readlines()
        content  = raw.split(",")
        if len(raw) == 0:
            print("That Username does not exist!")
            Username = input("Username: ")
        elif Username == content[0]:
            UCheck == "Y"
            lines = False

这是 .txt 文件的内容:

TheCloudMiner,Password123
TestUser,TestPass
Testing,Tester
Username,Password

我已经阅读了其他一些答案，但它们对我没有帮助。任何帮助将不胜感激。

Answer 1

readlines() 返回字符串列表，而不是字符串。您想分别在每一行上应用 split() ，因此您应该使用类似的内容迭代它

for line in open(...).readlines():
    username, password = line.split(",")
    # rest of your code