打开链接自动匹配跳转手机端链接还是pc端链接

// 判断机型
    function IsPC() {
        // 声明了浏览器用于 HTTP 请求的用户代理头的值
        var userAgentInfo = navigator.userAgent;
        //手机机型
        var Agents = ["Android", "iPhone", "SymbianOS", "Windows Phone", "iPad", "iPod"];
        var flag = true;
        for (var v = 0; v < Agents.length; v++) {
                if (userAgentInfo.indexOf(Agents[v]) >= 0) {
                        flag = false;
                        break;
                }
        }
        return flag;
    };
    window.onload=function(){
        var isPC=IsPC();
        if(isPC){
            //自动跳到pc端链接
            window.location.href="http://xxxx/pm/2019/znyy/index.html";
        }else{
            //自动跳到移动端端链接
            window.location.href="http://xxxx/pm/2019/znyy/index_phone.html";
        }
    };