save project

diy1.py

@@ -7,10 +7,10 @@ while True:
     if username==name and userpassword==password:
     if username==name and userpassword==password:
         print("登陆成功")
         print("登陆成功")
         break
         break
-    if name != username:
+    elif name != username:
         print("用户名不存在")
         print("用户名不存在")
-        continue
-    if password !=userpassword:
+        
+    else: 
         print("密码不存在")
         print("密码不存在")
-        continue
+        
 print("欢迎来到贝尔编程")
 print("欢迎来到贝尔编程")