JavaScript：获取系统当前时间，构造格式化的字符串

var getNowFormatDate = function() {
    var date = new Date();
    var seperator1 = "-";
    var seperator2 = ":";
    var month = date.getMonth() + 1;
    var strDate = date.getDate();
    if (month >= 1 && month <= 9) {
        month = "0" + month;
    }
    if (strDate >= 0 && strDate <= 9) {
        strDate = "0" + strDate;
    }
 var hours = date.getHours();
 if (hours >= 0 && hours <= 9) {
        hours = "0" + hours;
    }
 var minutes = date.getMinutes();
 if (minutes >= 0 && minutes <= 9) {
        minutes = "0" + minutes;
    }
 var seconds = date.getSeconds();
 if (seconds >= 0 && seconds <= 9) {
        seconds = "0" + seconds;
    }
    var currentdate = date.getFullYear() + seperator1 + month + seperator1 + strDate
            + " " + hours + seperator2 + minutes+ seperator2 + seconds;
    return currentdate;
};