save project

hhh.py

+username = "python"
+userpassword = "123456"
+while True:
+    username1=input("请输入用户名:")
+    userpassword1=input("请输入密码:")
+
+    if username1==username and userpassword==userpassword1:
+        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!")