save project

diy1.py

@@ -9,5 +9,8 @@ while True:
     if name==username and password==userpassword:  
     if name==username and password==userpassword:  
         print("登陆成功")
         print("登陆成功")
         break
         break
-    print("用户名和密码输入错误，请重新输入:")
+    if name!=username:    
+        print("用户名不存在，请重新输入:")
+    if password!=userpassword:
+        print("密码错误，请重新输入:")
 print("欢迎登陆")
 print("欢迎登陆")