<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"><html lang="en"><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8" /><title>日期操作</title><script>function getDate(){var date = new Date();var base = new Date(date).getTime();var oneDay = 24 * 3600 * 1000;var date = [];var data = [Math.random() * 300];var time = new Date(base);date.push([time.getFullYear(), time.getMonth() + 1, time.getDate()].join('/'));for (var i = 1; i <7; i++) {//控制需要的天数var now = new Date(base -= oneDay); //这里控制往前一周还是往后一周date.push([now.getFullYear(), now.getMonth() + 1, now.getDate()].join('/'));data.push(Math.round((Math.random() - 0.5) * 20 + data[i - 1]));}var newdate = date.reverse(); //往后一周的话需要将数组倒叙，完后不需要console.log(newdate);console.log(newdate[0]);//需要哪天直接下标取就行了//数据插入table显示，可忽略var str = "";for (let i = 0; i < newdate.length; i++) {str += '<tr>' + newdate[i] + '</tr></br>';};console.log(str);document.getElementById("time").innerHTML = str;//拼接完字符串数组后用innerHTML把它渲染到页面中}</script></head><body><button id="Timer" onclick="getDate()">获取任意时间(此处获取前7天时间)</button><table id="time"></table></body></html>
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