js无法检测到手机上是否有安装有当前软件，延时判断当前页面是否关闭来进行判断

const openApp = () => {

var u = navigator.userAgent;

var isAndroid = u.indexOf("Android") > -1 || u.indexOf("Linux") > -1; //g

var isIOS = !!u.match(/\(i[^;]+;( U;)? CPU.+Mac OS X/); //ios终端

if (isAndroid) {

window.location.href = "";

setTimeout(function () {

let hidden =

window.document.hidden ||

window.document.mozHidden ||

window.document.msHidden ||

window.document.webkitHidden;

if (typeof hidden == "undefined" || hidden == false) {

window.location.href =

"";

}

}, 1500);

}

if (isIOS) {

//iosapp

window.location.href = "";

setTimeout(function () {

let hidden =

window.document.hidden ||

window.document.mozHidden ||

window.document.msHidden ||

window.document.webkitHidden;

if (typeof hidden == "undefined" || hidden == false) {

window.location.href =

"";

}

}, 1500);

return false;

}

};