为什么我的代码通过第一个 for 循环而不是第二个 for 循环？

Question

所以开始吧，这不是完整的程序。我正在研究银行管理系统，只是运行遇到了这个问题。我试图让客户输入他们的登录 ID 和密码，然后它检查第一个文件，然后代码将打开另一个文件，检查第一个元素与登录 ID 相同，然后打印出客户帐户类型和余额.文本文件示例在底部，我不知道为什么我的代码运行通过第一个循环而不是第二个循环。

def LCustomerAccount():
EnteredID = str(input("========== Please Type in Your Account ID:"))
EnteredPassword = str(input("========== Please Type in Your Password:"))
B = open("Customerlogin.txt", "r")
G = open("system.txt", "a+")
Account_NumberList = []
for line in B.readlines():
    id, pw = line.strip().split("|", 1)
    if (EnteredID == id) and (EnteredPassword == pw):
        print("========== Login Successfull============")
        print("========== Welcome User============")
        Account_NumberList.append(EnteredID)
        B.close()
        break

    else:
        print("Wrong Account Number/password")
        menu()
for line in G.readlines():
    idc,at,balance= line.strip().split("|",2)
    if (idc == Account_NumberList):
        print("Your Account Type:", at)
        print("Your Account Balance:",balance)
        print("========== (Option 1). Deposit an amount from your account ============")
        print("========== (Option 2). Withdraw an amount from your account============")
        print("========== (Option 3). Change Your Account Password        ============")
        print("========== (Option 4). Log Out                             ============")
        EnterOption = int(input("==========Please Enter Your Option"))

Customerlogin.txt

020403100865|3088

System.txt

020403100865|节省|1000|李|3088|00001|200

Answer 1

如果你不想修改txt文件，我想这就足够了：

G = open("system.txt", "r")

为什么我的代码通过第一个 for 循环而不是第二个 for 循环？

Why does my code go through the first for loop but not the second for loop?

python

text

function

Customerlogin.txt

System.txt