save project

diy1.py

 
 
-username = 'python'
-userpassword = '123456'
-name = input("请输入用户名：")
-passward = input("请输入密码：")
-if name == username and passward == userpassword:
-    print("登录成功")
+username = "python"
+userpassword = "123456"
+while True:
+    name = input("请输入用户名：")
+    passward = input("请输入密码：")
+    if name == username and passward == userpassword:
\ No newline at end of file
+        print("登录成功")
+        break
+    print("用户名和密码错误！请重新输入")
+print("欢迎来到贝尔编程！
+")
\ No newline at end of file