save project

diy1.py

@@ -3,14 +3,14 @@ userpassword = "123456"    # 保存在服务器数据库中的用户密码（正
 
 while True:
     name = input("请输入账号！")
-    password = input("请输入密码！")
 # 如果用户输入的账号、密码正确，提示登陆成功
-    if name == username and password == userpassword:
-        print("输入正确！")
-        break
     if name != username:
         print("用户名不存在！")
         continue
+    password = input("请输入密码！")
     if password != userpassword:
         print("密码不存在！")
+    if name == username and password == userpassword:
+        print("输入正确！")
+        break
 print("欢迎来到贝尔编程！")
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