<!DOCTYPE html>
<html lang="zh-cn">
<head>
<meta charset="UTF-8">
<title></title>
</head>
<body>
<script>
function getDateDiff(dateTimeStamp) {
var minute = 1000 * 60;
var hour = minute * 60;
var day = hour * 24;
var halfamonth = day * 15;
var month = day * 30;
var now = new Date().getTime();
var diffValue = now - dateTimeStamp;
if(diffValue < 0) {
return;
}
var monthC = diffValue / month;
var weekC = diffValue / (7 * day);
var dayC = diffValue / day;
var hourC = diffValue / hour;
var minC = diffValue / minute;
if(monthC >= 1) {
result = "" + parseInt(monthC) + "月前";
} else if(weekC >= 1) {
result = "" + parseInt(weekC) + "周前";
} else if(dayC >= 1) {
result = "" + parseInt(dayC) + "天前";
} else if(hourC >= 1) {
result = "" + parseInt(hourC) + "小时前";
} else if(minC >= 1) {
result = "" + parseInt(minC) + "分钟前";
} else{
result = "刚刚";
}
return result;
}
function getDateTimeStamp(dateStr) {
return Date.parse(dateStr.replace(/-/gi, "/"));
}
var datetime = getDateTimeStamp("2016/6/20 10:21:30");
document.write(datetime + "<br>");
var getDatetime = getDateDiff(datetime);
document.write(getDatetime);
</script>
</body>
</html>
效果图：