javascript动态输出时间

原生js动态输出时间，笔记

function _time(){    var _date = new Date();    var _year = _date.getFullYear();    var _month = _date.getMonth() + 1;    if(_month < 10){        _month = "0" + _month;    }    var _ddate = _date.getDate();    if(_ddate < 10){        _ddate = "0" + _ddate;    }    var _hour = _date.getHours();    if(_hour < 10){        _hour = "0" + _hour;    }    var _minute = _date.getMinutes();    if(_minute < 10){        _minute = "0" + _minute;    }    var _second = _date.getSeconds();    if(_second < 10){        _second = "0" + _second;}_show.innerHTML =  "服务器标准时间：" + _year + "-" + _month + "-" + _ddate + "&nbsp;" + _hour + ":" + _minute + ":" + _second;}var _show = document.getElementById("show_msg");_time();setInterval('_time()',1000);

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