在此插入代码
var i, ul=document.getElementById('test-list'), j=ul.children.length; for(i=1;i<=j/2;i++){ ul.removeChild(ul.children[i]); } alert(j);
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var i, ul=document.getElementById('test-list'), j=ul.children.length; for(i=1;i<=j/2;i++){ ul.removeChild(ul.children[i]); } alert(j);