获取IP函数
function getIPAddress(){
var interfaces = require('os').networkInterfaces();
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){
return alias.address;
}
}
}
}
const LOCAL_IP = getIPAddress()
