IP地址可以是静态的，也可以是动态的。静态IP地址是手动分配给设备的，不会改变。动态IP地址由网络服务器自动分配，每次设备连接到网络时，都可能更改。

IP地址不仅用于设备标识，还用于路由决策。互联网上的数据包根据目标IP地址进行路由，以确保数据包能够到达正确的目标。

IP addresses can be either static or dynamic. Static IP addresses are manually assigned to a device and do not change. Dynamic IP addresses are automatically assigned by a network server and may change each time the device connects to the network.

IP addresses are not only used for device identification but also for routing decisions. Data packets on the internet are routed based on the destination IP address to ensure that the data packets can reach the correct destination.