nodejs获取本机局域网ip

const os = require('os');

var interfaces = os.networkInterfaces();

var netip = ""

for (var devName in interfaces) {

**  var iface = interfaces[devName];**

**for (var i = 0; i < iface.length; i++) {**

**var alias = iface[i];**

**if (alias.family === 'IPv4' && alias.address !== '127.0.0.1' && !alias.internal) {**

**netip = alias.address;**

**}**

**}**

}