save project

diy1.py

@@ -8,10 +8,10 @@ while True:
     if username==name and userpassword==password:
         print('登陆成功')
         break
-    if username!=name:
+    elif username!=name:
         print('用户名不存在')
-        continue
-    if userpassword!=password:
+        
+    else: 
         print('密码错误')
 print('换赢')