手机返回键 触发事件

function pushHistory(){
var state = {
title: "title",
url: "#"
}
window.history.pushState(state, "title", "#");
}

pushHistory();
function goBack(){

var sid = $('#sid').val();

window.location.href = "http://www.shykjgf.com/app/index.php?i=2&c=entry&m=ewei_shopv2&do=mobile&r=member.store&sid="+sid;

}

window.addEventListener("popstate", goBack, false);