javascript获取当前时间CurentTime

function CurentTime(){
    var now = new Date();

    var year = now.getFullYear();       //年
    var month = now.getMonth() + 1;     //月
    var day = now.getDate();            //日

    var hh = now.getHours();            //时
    var mm = now.getMinutes();          //分
    var ss = now.getSeconds();          //秒

    var clock = year + "-";

    if(month < 10)
        clock += "0";

    clock += month + "-";

    if(day < 10)
        clock += "0";

    clock += day + " ";

    if(hh < 10)
        clock += "0";

    clock += hh + ":";
    if (mm < 10)
        clock += '0'; 

    clock += mm + ":"; 

    if(ss < 10)
        clock += "0";

    clock +=ss;
    return(clock);
}

得到的结果就是：2017-04-03 10:33:11