获取 GET请求中 的指定数据

var str = getQueryVariable('code');

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];

}

}