save project

diy2.py

-username = "python"
-userpassword = "123456"
+username = "cheng"
+userpassword = "716165"
 while True:
 while True:
-    name = input("请输入用户名:")
-    password = input("请输入密码:")
-    if name == username and password == userpassword:
+    a = input("请输入用户名:")
+    b = input("请输入密码:")
+    if a == username: 
+       if b == userpassword:
            print("登录成功!")
            print("登录成功!")
-    print("用户名和密码错误!请重新输入")
+           break
+       else:
+           print("密码不正确")
+    else:
+        print("用户名不正确")
 print("欢迎来到贝尔编程!")
 print("欢迎来到贝尔编程!")
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