js下：
判断是否是整数
function IsNum(s) //整数
{
if(s=="null"||s=="undefined"||s.length<1)
return false;
if(isNaN(parseInt(s)))
return false;
else
if((parseInt(s)+"").length!=s.length)
return false;
else
return true;
}
function IsNumber(JudgeNum){ //判断大于0的数
var JudgeStr=JudgeNum.toString();
for (var i=0;i<JudgeStr.length;i++) {
var oneChar=JudgeStr.charAt(i);
if (oneChar<"0" || oneChar >"9"){
return false;
}
}
return true;
}
