<!DOCTYPE html> <html> <head> <meta charset="UTF-8"> <title></title> </head> <body> <script> var pretime = "2018-04-07 14:38:16"; var minute = 1000 * 60; var hour = minute * 60; var day = hour * 24; var halfamonth = day * 15; var month = day * 30; //这是第一次打开页面时调用 getDate(pretime); //然后再每隔一分钟更新一次时间 setInterval(function() { getDate(pretime); }, 60000); function getDate(dateTimeStamp){ if(dateTimeStamp==undefined){ return false; }else{ dateTimeStamp = dateTimeStamp.replace(/-/g, "/"); var sTime = new Date(dateTimeStamp).getTime();//把时间pretime的值转为时间戳 var now = new Date().getTime();//获取当前时间的时间戳 var diffValue = now - sTime; if(diffValue < 0){ console.log("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){ console.log(parseInt(monthC) + "个月前"); } else if(weekC>=1){ console.log(parseInt(weekC) + "周前") } else if(dayC>=1){ console.log(parseInt(dayC) +"天前") } else if(hourC>=1){ console.log(parseInt(hourC) +"个小时前") } else if(minC>=1){ console.log(parseInt(minC) +"分钟前") }else{ console.log("刚刚") } } } </script> </body> </html> 复制代码