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| /**
| * 根据设备id计算设备ip
| * @param dev_id
| * @returns {object}
| */
| function getDevIp(dev_id) {
| let ptn = /^[0-9]{4}([0-9]+)$/;
| let ip = '';
| let code = 0;
| if(ptn.test(dev_id)) {
| let value = Number(RegExp.$1);
| let intNum = prefixInteger(Math.floor(value/256), 3);
| let resNum = prefixInteger(value%256, 3);
| ip = '127.000.'+intNum+'.'+resNum;
| code = 1;
| }else {
| code = 0;
| ip = '设备ID格式不正确';
| }
| return {
| code: code,
| data: ip
| };
| }
|
| // 获取001类似数据
| function prefixInteger(num, length) {
| return (Array(length).join('0') + num).slice(-length);
| }
|
| export default getDevIp;
|
|
