用js计算时间差_得到比较人性化的结果

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用js计算时间差，得到比较人性化的结果0+2,006 views / 2009.09.03 / 5:05 下午我们经常看到一些文章或者评论的发表时间不是直接显示出死板的Y-m-d格式，而是算了一个时间差，如：发表于2分钟前，这样显得比较人性化，多用于一些非正式网站。下面提供JavaScript的实现方法：var minute = 1000 * 60;var hour = minute * 60;var day = hour * 24;var halfamonth = day * 15;var month = day * 30; function getDateDiff(dateTimeStamp){var now = new Date().getTime();var diffValue = now - dateTimeStamp; if(diffValue < 0){ //非法操作 //alert("结束日期不能小于开始日期！"); } 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="发表于" + parseInt(monthC) + "个月前"; } else if(weekC>=1){ result="发表于" + parseInt(weekC) + "个星期前"; } else if(dayC>=1){ result="发表于"+ parseInt(dayC) +"天前"; } else if(hourC>=1){ result="发表于"+ parseInt(hourC) +"个小时前"; } else if(minC>=1){ result="发表于"+ parseInt(minC) +"分钟前"; }else result="刚刚发表";? return result;}如果你得到的原始数据不是时间戳，可以采用下面的函数把字符串转换为标准时间戳, 它相当于JS版的strtotime，只不过精度不同罢了：function getDateTimeStamp(dateStr){ return Date.parse(dateStr.replace(/-/gi,"/"));}<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=gb2312" /><title>js计算时间差</title><script language="javascript">var minute = 1000 * 60;var hour = minute * 60;var day = hour * 24;var halfamonth = day * 15;var month = day * 30; function getDateDiff(dateTimeStamp){var now = new Date().getTime();var diffValue = now - dateTimeStamp; if(diffValue < 0){ //非法操作 alert("结束日期不能小于开始日期！");}  alert("当前时间："+now);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="发表于" + parseInt(monthC) + "个月前"; } else if(weekC>=1){ result="发表于" + parseInt(weekC) + "个星期前"; } else if(dayC>=1){ result="发表于"+ parseInt(dayC) +"天前"; } else if(hourC>=1){ result="发表于"+ parseInt(hourC) +"个小时前"; } else if(minC>=1){ result="发表于"+ parseInt(minC) +"分钟前"; }else result="刚刚发表";  return result;}</script></head><body><script type="text/javascript">function getDateTimeStamp(dateStr){ return Date.parse(dateStr.replace(/-/gi,"/"));}//把带有格式的时间转换 成 毫秒数document.write(getDateTimeStamp("2011-05-22 12:12:12")+"<br><br><br><br>"); //document.write(getDateDiff("1306220613953")); //通过转换后 输出 结果 document.write(getDateDiff(getDateTimeStamp("2011-05-24 12:12:12")));</script></body></html> else if(weekC>=1){ result="发表于" + parseInt(weekC) + "个星期前"; } else if(dayC>=1){ result="发表于"+ parseInt(dayC) +"天前"; } else if(hourC>=1){ result="发表于"+ parseInt(hourC) +"个小时前"; } else if(minC>=1){ result="发表于"+ parseInt(minC) +"分钟前"; }else result="刚刚发表";  return result;}</script></head><body><script type="text/javascript"> document.write(getDateDiff("1306220613953"));</script></body></html>