save project

diy2.py

+username = "qwertyuiop"
+userpassword = "123456"
+while True:
+    name = input("请输入用户名:")
+    password = input("请输入密码:")
+    if name == username and password == userpassword:
+        print("登录成功")
+        break
+    if name!=username:
+        print("账号失败")
+    if userpassword!=password:
+        print("密码失败")
+print("欢迎来到编程中心")