save project

diy1.py

 username = "python"
 username = "python"
 userpassword = "123456"
 userpassword = "123456"
-username_1 = input("请输入帐号")
-userpassword_1= input("请输入密码")
-if username == userpassword_1 and userpassword_1==userpassword:
-    print("登录成功")
-    break
-print("有户名和密码错误!请重新输入"):
-print("欢迎来到贝了编程器")
+while True:
+    name = input("请输入用户名")
+    password = input("请输入密码")     
+    if name == userpassword_1 and userpassword_1==userpassword:
+        print("登录成功")
+        break
+    elif username_1 != username
\ No newline at end of file
+    print("有户名和密码错误!请重新输入"):
+ print("欢迎来到贝了编程器")