save project

sb.py

+i = 3
+username = "python"
+userpassword = "123456"
+while True:
+    if i>0:
+        name = input("请输入name:")
+        password = input("请输入密码:")
+        i -= 1
+        if name == username and password == userpassword:
+            print("登录成功!")
+            break
+        if name != username:
+            print("查无此人")
+            continue
+        if password != userpassword:
+            print("cdk错误")
+    else:
+        print("电脑将于10秒后爆炸")
+        exit()
+print("登陆成功")
+