JS设置返回事件，手机点击返回就跳转到某个链接

var back_url = "{$row.url}";
function pushHistory() {
   var state = {
      title: "上一页",
      url: '#'
   };
   window.history.pushState(state, "title", "#")
}
$(function () {
  pushHistory();
  window.addEventListener("popstate", function (e) {
                //可在此处添加事件处理
  window.location = back_url;
  }, false);
});