save project

diy2.py

+username = "python"
+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("登陆成功!")
+        break
+    elif name !=username
+        print("用户名错误!请重新输入!")
+        print("温馨提示，你还有"+str(i)+"次登录机会")
+    elif name !=username
+        print("和密码错误!请重新输入!")
+        print("温馨提示，你还有"+str(i)+"次登录机会")
+    else:
+        print("你的账户已锁定，请一个小时或再来")
+        exit()
+print("欢迎来到贝尔编程!")