代码库
npm install wsf-lib
``import {isNull,getParamsFromUrl} from "wsf-lib";
import {isNull,getParamsFromUrl} from "wsf-lib";
isNull(str):判断str是否为空,即 "",null,undefined
getParamsFromUrl(url):从url中获取参数,如果不传参,就获取当前的url地址``