save project

diy2.py

+u = "python"
+s = "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 u!= name：
+        print("用户名和密码错误!请重新输入")
+        continue
+    if s!=password：
+        print("你个SB！这都能输错")
+        continue
+print("欢迎来到贝尔编程!")