save project

diy2.py

@@ -2,12 +2,15 @@ username = "黎君玉"
 userpassword = "1592"
 while True:
     n = input("请输入用户名:")
+    if n != username: 
+        print("用户名错误")
+        continue   
     p = input("请输入密码:")
-    if n == username:
-         
-        p == userpassword
-        print("登录成功!")
-        break 
-    if n != username and p!= userpassword:    
+    if p!= userpassword:    
         print("用户名和密码错误!请重新输入")
+    if n == username and p == userpassword:
+        print("登录成功!")
+        break     
+      
+        
 print("欢迎来到贝尔编程!")
\ No newline at end of file