请教一个关于html控件值求和问题...

Question

var a=document.getElementsByTagName("input");
for(var i=0,i<a.length;i++){
   if([i].name.length>25){
      if(a[i].name.substr(0,25)=="TopicEndList$dlstReplyList$ct"){
          alert(a[i].value)
      }
  }
}

Answer 1

var reg=/^TopicEndList_dlstReplyList_ctl\d+_geiMark$/;
var a=document.getElementsByTagName("input");
var total=0;
for(var i=0,i<a.length;i++){
   var newID=a[i].id;
   if(reg.test(newID)){
   total +=a[i].value;
   }
  }
}

Answer 2

纠正一下楼上的total += a[i].value估计会转成字符串total += parseInt(a[i].value)

Answer 3

return $A(document.getElementsByTagName("input")).inject(0,function(a,b){
  return (/^TopicEndList_dlstReplyList_ctl\d+_geiMark$/.test(b.id))?a+b.value:a
})