<script language="javascript" type="text/javascript"> window.onload = function(){ var oTable = document.getElementById("num"); for(var i=0;i<oTable.rows.length;i++){ oTable.rows[i].cells[0].innerHTML = (i+1); } } </script> 注意:要在table中添加id才能生效:<tbody id="num">
JavaScript 自动在表格前面增加序号
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转载自think1991.iteye.com/blog/2328274
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