save project

diy2.py

 username = "python"
 username = "python"
 userpassword = "123456"
 userpassword = "123456"
 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:
-        print("登录成功!")
-    print("用户名和密码错误!请重新输入")
-print("欢迎来到贝尔编程!")
+    a=input("请输入您的名字")
+    b=input("请输入密码")
+    if a==username and b==userpassword:
+        print("输入正确，登录成功")
+        break
+    elif a==username and not b==userpassword:
\ No newline at end of file
+        print("名称正确，密码错误，请重新输入")
+    elif not a==username and b==userpassword:
+        print("密码正确，名称错误，请重新输入")
+    else:
+        print("输入错误，请重新输入")
\ No newline at end of file