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<!DOCTYPE html><html lang="en"><head><meta charset="UTF-8"><title>时间运算-加减</title><script type="text/javascript">window.onload = function () {var dateStr = document.getElementById("myDate").value;var MinuteStr = eval(document.getElementById("mySeconds")).value;var resultStr = dateAddMinute(dateStr,MinuteStr);//alert("结果："+resultStr)}//日期加分钟function dateAddMinute(pDate,pMinute) {var date = new Date(pDate);var resultDate = new Date();var resultStr ; //返回值date = date.getTime() + pMinute*60*1000;resultDate.setTime(date);var year = resultDate.getFullYear();var month = resultDate.getDay() + 1;var day = resultDate.getDay();var hours = resultDate.getHours();var minutes = resultDate.getMinutes();var seconds = resultDate.getSeconds();month = month<9?"0"+month:month;day = day<9?"0"+day:day;hours = hours<9?"0"+hours:hours;minutes = minutes<9?"0"+minutes:minutes;seconds = seconds<9?"0"+seconds:seconds;resultStr = year + "-" + month + "-" + day +" " + hours + ":" + minutes + ":" + seconds;return resultStr;}function btnOnClick() {var dateStr = document.getElementById("myDate").value;var MinuteStr = eval(document.getElementById("mySeconds")).value;var resultStr = dateAddMinute(dateStr,MinuteStr);alert("结果："+resultStr)}</script></head><body><h1>时间运算-加减</h1>日期：<input id="myDate" type="text" name="myDate" value="2016-06-20 17:01:02">分钟：<input id="mySeconds" type="text" name="mySeconds" value="2"><button onclick="btnOnClick()">相加</button>结果：<input id="resultStr" type="text" name="resultStr" ></body></html>
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原文地址：http://www.cnblogs.com/yexiaodong/p/0d9232d4357247e51e70c06658dc3e16.html
