save project

diy2.py

@@ -2,12 +2,12 @@ username = "python"
 userpassword = "123456"
 userpassword = "123456"
 while True:
 while True:
     name = input("请输入用户名:")
     name = input("请输入用户名:")
+    if name != username:
+        print("用户名错误")
     password = input("请输入密码:")
     password = input("请输入密码:")
-    if name == username and password == userpassword:
+    elif password != userpassword:
+        print("密码错误")
+    else:
         print("登录成功!")
         print("登录成功!")
         break
         break
-    elif name != username:
-        print("用户名错误")
-    else:
-        print("密码错误")
 print("欢迎来到贝尔编程!")
 print("欢迎来到贝尔编程!")
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