js时间加减与时间对象与字符串之间的转换
//js时间的加法 function timeAdd(){ //7天的毫秒数 加7天var interval = 7*24*60*60*1000; var now = new Date(); now.setTime(now.getTime()+interval); } //将js的时间对象转换为字符串yyyyMMddHHssmm function jsTimeToString(time){ var year=time.getYear(); var month=time.getMonth()+1; var day=time.getDate(); var hour=time.getHours(); var minute=time.getMinutes(); var second=time.getSeconds(); if(month<10){ month="0"+month; } if(day<10){ day="0"+day; } if(hour<10){ hour="0"+hour; } if(minute<10){ minute="0"+minute; } if(second<10){ second="0"+second; } var strTime = year+""+month+""+day+""+hour+""+minute+""+second; return strTime; } //将字符串转换为js的时间对象， 字符串格式yyyyMMddHHssmm function stringToJsTime(time) { var y = time.substring(0,4); var m = time.substring(4,6)-1; var d = time.substring(6,8); var h = time.substring(8,10); var mm = time.substring(10,12); var ss = time.substring(12,14); var date = new Date(y,m,d,h,mm,ss,0); return date; } //将字符串转换为js的时间对象， 字符串格式yyyy-MM-dd HH:ss:mm function stringToJsTime_(timeString) { var y = timeString.substring(0,4); var m = timeString.substring(5,7)-1; var d = timeString.substring(8,10); var h = timeString.substring(11,13); var mm = timeString.substring(14,16); var ss = timeString.substring(17,19); var time = new Date(y,m,d,h,mm,ss,0); return time; }