JavaScript之Date对象

Date对象用于处理日期和时间

用法： var 日期对象 = new Date(参数);

<script> var today = new Date(); var d0 = new Date("2016-2-14 12:30:24"); var d1 = new Date("2016/2/14 12:30:24"); var d2 = new Date(2016, 7, 18, 11); //月份取值为[0-11]，7表示8月 var d3 = new Date(2134075923232); console.log(today); console.log(d0); console.log(d1); console.log(d2); console.log(d3); </script>

日期对象的常用方法

Date对象的参数值及其对应的整数

<script> var today = new Date(); console.log(today); var year = today.getFullYear(); var month = today.getMonth() + 1; var date = today.getDate(); var hour = today.getHours(); var minute = today.getMinutes(); var second = today.getSeconds(); var day = today.getDay(); var weekday = ["星期日", "星期一", "星期二", "星期三", "星期四", "星期五", "星期六"]; var current = year + "年" + month + "月" + date + "日 " + hour + ":" + minute + ":" + second + " " + weekday[day]; console.log(current); var milliSeconds = today.getMilliseconds(); //当前时间剩余的毫秒 var seconds = today.getTime(); //自1970.1.1至今的毫秒 console.log(milliSeconds); console.log(seconds); </script>

另有一组和get方法对应的set方法，用于设置日期对象的某个值 toUTCString()：把Date对象转换为世界时格式的字符串 toLocaleString()：把Date对象转换为本地格式的字符串

<script> var today = new Date(); //设置时间 today.setDate(today.getDate() + 5); console.log(today); console.log(today.toUTCString()); //转换为UTC世界标准时间的字符串 console.log(today.toLocaleString()); //转换为本地时间的字符串 </script>