js删除对象的问题!

Question

for(var i=0;i<imgs.length;i++)
                {
                    $("imgspace").removeChild(imgs[i]);
                }
这里有问题 当$("imgspace").removeChild(imgs[i]);执行以后imgs.length就会减少
将imgs.length在前面定义可以解决function getFace(model)
            {
                var piclength;
                
                switch(model)
                {
                    case 0:
                        piclength=30;
                        break;
                    case 30:
                        piclength=60;
                        break;
                    case 60:
                        piclength=90;
                        break;
                    default:
                        return;
                }
                var imgs=$("imgspace").getElementsByTagName("img");
                if(!imgs)return;var 
                iCount=imgs.length;
                for(var i=0;i<iCount;i++)
                {
                    $("imgspace").removeChild(imgs[i]);
                }
                while(model<piclength)
                {
                    var img=document.createElement("img");
                    img.src="images/qqimg/"+model+".gif";
                    img.style.cursor='hand';
                    img.onclick=function(){alert();}
                    $("imgspace").appendChild(img);
                    model++;
                }
            }

Answer 1

for(var i=0;i<imgs.length;i++)
                {
                    $("imgspace").removeChild(imgs[i]);
                }
这里有问题 当$("imgspace").removeChild(imgs[i]);执行以后imgs.length就会减少
将imgs.length在前面定义可以解决function getFace(model)
            {
                var piclength;
                
                switch(model)
                {
                    case 0:
                        piclength=30;
                        break;
                    case 30:
                        piclength=60;
                        break;
                    case 60:
                        piclength=90;
                        break;
                    default:
                        return;
                }
                var imgs=$("imgspace").getElementsByTagName("img");
                if(!imgs)return;var 
                iCount=imgs.length;
                for(var i=0;i<iCount;i++)
                {
                    $("imgspace").removeChild(imgs[i]);
                }
                while(model<piclength)
                {
                    var img=document.createElement("img");
                    img.src="images/qqimg/"+model+".gif";
                    img.style.cursor='hand';
                    img.onclick=function(){alert();}
                    $("imgspace").appendChild(img);
                    model++;
                }
            }

Answer 2

这样子不行哦. 我改出来了function getFace(model)
{
var piclength;

switch(model)
{
case 0:
piclength=30;
break;
case 30:
piclength=60;
break;
case 60:
piclength=90;
break;
default:
return;
}
var imgs=$("imgspace").getElementsByTagName("img");
if(!imgs)return;
var count=imgs.length;
for(var i=0;i<count;i++)
{
$("imgspace").removeChild(imgs[0]);
}
while(model<piclength)
{
var img=document.createElement("img");
img.src="images/qqimg/"+model+".gif";
img.style.cursor='hand';
img.onclick=function(){alert();}
$("imgspace").appendChild(img);
model++;
}
}