上一次我们说到了每一台连入网络的计算机都有一个自己惟一的地址,叫做Internet地址,也叫IP地址,这个地址是由四组介于O—255之间的数字组成的。可是这个地址太复杂了,一般的人哪记得住啊。于是,计算机专家只好再想一些变通的办法,给每台主机一个域名地址,去对应那些枯燥的IP地址,这就是域名地址。要说明白这种对应,我们还得回到IP地址来,IP是由四组数 Last time we said that every computer connected to the network has its own unique address, called the Internet address, also called the IP address. This address is made up of four groups of numbers between O-255. However, this address is too complicated, which ordinary people remember live ah. So, computer experts had to think of some workarounds, give each host a domain name address, corresponding to those boring IP address, which is the domain name address. To clarify this correspondence, we have to return to the IP address, IP is composed of four groups