save project

diy2.py

@@ -2,14 +2,11 @@ username = "python"
 userpassword = "123456"
 while True:
     name = input("请输入用户名:")
-    if name == username:
-        password=input("请输入密码:")
-    else:
-        print("用户名错误")
-        break 
+    password=input("请输入密码:")
     if name == username and password == userpassword:
         print("登录成功")   
-        print("欢迎来到贝尔编程!")
-        break 
+        print("欢迎来到贝尔编程!")     
+    elif  username!=  :         
+    print("用户名错误")
     if password !=  userpassword:
         print("密码错误")         
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