$(document).ready(function(){            $.extend({              show:function(){                           }            });            setInterval("show()",1000);            });        function show(){           var myDate = new Date();        var month = myDate.getMonth()+1;        var day = myDate.getDate();        var Hours = myDate.getHours();        var Minutes = myDate.getMinutes();        var Seconds = myDate.getSeconds();        if(month<10){            month = '0'+month        }        if(day<10){            day = '0'+day        }        if(Hours<10){            Hours = '0'+Hours        }         if(Minutes<10){            Minutes = '0'+Minutes        }         if(Seconds<10){            Seconds = '0'+Seconds        }        var time = myDate.getFullYear()+'-'+month+'-'+day+' '+Hours+':'+Minutes+':'+Seconds        $('#time').html(time);        }

　　

var myDate = new Date();//获取系统当前时间

 

1 myDate.getYear(); //获取当前年份(2位) 2 myDate.getFullYear(); //获取完整的年份(4位,1970-????) 3 myDate.getMonth(); //获取当前月份(0-11,0代表1月) 4 myDate.getDate(); //获取当前日(1-31) 5 myDate.getDay(); //获取当前星期X(0-6,0代表星期天) 6 myDate.getTime(); //获取当前时间(从1970.1.1开始的毫秒数) 7 myDate.getHours(); //获取当前小时数(0-23) 8 myDate.getMinutes(); //获取当前分钟数(0-59) 9 myDate.getSeconds(); //获取当前秒数(0-59)10 myDate.getMilliseconds(); //获取当前毫秒数(0-999)11 myDate.toLocaleDateString(); //获取当前日期12 var mytime=myDate.toLocaleTimeString(); //获取当前时间13 myDate.toLocaleString( ); //获取日期与时间