save project

diy1.py

@@ -9,5 +9,9 @@ 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
+    elif name!=username:
+        print("密码错误")
+    elif name!=userpassword:
+        print("密码错误")
     else:
     else:
         print("账号或密码不正确，登录失败！")
         print("账号或密码不正确，登录失败！")
\ No newline at end of file