save project

diy2.py

@@ -6,5 +6,12 @@ while True:
     if name == username and password == userpassword:
     if name == username and password == userpassword:
         print("登录成功!")
         print("登录成功!")
         break
         break
-    
-    
+    if name != username
+        print(用户名)
\ No newline at end of file
+    elif name != username and password != userpassword:
+        print("用户名和密码用户名")
+    elif name != username:
+        print("用户名错误!请重新输入")
+        continue
+    elif password != userpassword:
+        print("密码错误!请重新输入")