做一个端口扫描器。对于根据IP地址扫描处有点疑惑。定义的变量大概有这些。
我的困惑在于：
1、为什么type=0时为IP，type=1时为主机？这是自己随意定的么。
2、红框处 等号后边会什么会有一对空的双引号？
伊谢尔伦2017-04-17 17:41:40
My confusion is, why did you ask if you didn’t write this yourself? Even if it was found somewhere else, does it have to be correct?
