function getQueryVariable(variable) {
var query = window.location.search.substring(1);
var vars = query.split("&");
for (var i = 0; i < vars.length; i++) {
var pair = vars[i].split("=");
if (pair[0] === variable) { return pair[1]; }
}
return ‘‘;
}
示例：var id = getQueryVariable(‘id‘);
var pid= getQueryVariable(‘pid‘);
原文：https://www.cnblogs.com/exyz/p/12679702.html