var rtm=/^((0[0-9])|(1[0-9])|(2[0-3]))\:([0-5][0-9])$/; alert(rtm.test('25:58')); alert(rtm.test('23:59'));
可以定义如下的格式"^(([0-1][0-9])|2[0-3]):[0-5][0-9]$(",这样就可以了,如果需要的话可以建立如下的脚本处理输入 function regInput(reg) { var srcElem = event.srcElement var oSel = document.selection.createRange() var srcRange = srcElem.createTextRange() oSel.setEndPoint("StartToStart", srcRange) var num = oSel.text + String.fromCharCode(event.keyCode) + srcRange.text.substr(oSel.text.length) event.returnValue = reg.test(num) }
alert(rtm.test('25:58'));
alert(rtm.test('23:59'));
function regInput(reg)
{
var srcElem = event.srcElement
var oSel = document.selection.createRange()
var srcRange = srcElem.createTextRange()
oSel.setEndPoint("StartToStart", srcRange)
var num = oSel.text + String.fromCharCode(event.keyCode) + srcRange.text.substr(oSel.text.length)
event.returnValue = reg.test(num)
}