計算總和
<table id=dataTable>input id=TPrice0 輸入值是10input id=TPrice1 輸入值是10function total(){ var Table =document.getElementById("dataTable"); var rownum=Table.rows.length-2; //由0開始 var arr= document.getElementById('TPrice'+rownum).value; var temp = arr.split(" "); var total=0; var v; for(var i=0;i<temp.length;i++){ v = parseInt(temp[i]); total += v; } document.getElementById('TPric').value=total; }