$(
function () {

//頁面加載時計算人員統計表合計值
calcSum();

});

//合計行計算
/*
以合計行為中間變量
每個單元格與該列合計行相加
得到每列合計
*/
function trVisible(chk, index) {

var disValue = $("#Tr" + index).css("display");
if (chk.checked) {

$("#Tr" + index).css("display", "block");
}
else {
$("#Tr" + index).css("display", "none");
}
calcSum();
}
function calcSum() {

//合計行賦初始值0
$("#trSum").each(function () {
$(this).find("td").each(function () {
if ($(this).index() != 0) {
$(this).text("0");
}
});
});

$("#tabrytj").find("tr").each(function () {
var trDis = $(this).css("display");
//隱藏行不參與計算
if (trDis == "block") {
$(this).find("td").each(function () {
var index = $(this).index();
if (index >= 1) {
var tdValue = $("#trSum").find("td:eq(" + index + ")").text();
//totalSum += parseFloat($(this).text());
$("#trSum").find("td:eq(" + index + ")").text(parseFloat(tdValue) + parseFloat($(this).text()));
}
});
}
});


}

<table>
<tr>
<td>分公司</td>
<td>
<select>
<option>
華南分公司
</option>
</select>
</td>
<td><input type="checkbox" onclick="trVisible(this,1)" name="chk1" id="chk1" checked="checked" />張1</td>
<td><input type="checkbox" onclick="trVisible(this,2)" checked="checked" />張2</td>
<td><input type="checkbox" onclick="trVisible(this,3)" checked="checked" />張3</td>
<td><input type="checkbox" onclick="trVisible(this,4)" checked="checked" />張4</td>
<td><input type="checkbox" onclick="trVisible(this,5)" checked="checked" />張5</td>
<td><input type="checkbox" onclick="trVisible(this,6)" checked="checked" />張6</td>
</tr>
</table>



<div>
<table border="0" class="tableinfo" id="tabrytj">
<tr id="Tr1" style="display:block">
<td>張1 </td>
<td>124536</td>
<td>124536</td>
<td>124536</td>
<td>124536</td>
<td>124536</td>
<td>124536</td>
<td>124536</td>
<td>124536</td>
<td>124536</td>
<td>124536</td>
</tr>
<tr id="Tr2" style="display:block">
<td>張2 </td>
<td>124536</td>
<td>124536</td>
<td>124536</td>
<td>124536</td>
<td>124536</td>
<td>124536</td>
<td>124536</td>
<td>124536</td>
<td>124536</td>
<td>124536</td>
</tr>
<tr id="Tr3" style="display:block">
<td>張23 </td>
<td>124536</td>
<td>124536</td>
<td>124536</td>
<td>124536</td>
<td>124536</td>
<td>124536</td>
<td>124536</td>
<td>124536</td>
<td>124536</td>
<td>124536</td>
</tr>
<tr id="trSum">
<td></td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
<td>0</td>
</tr>
</table>
</div>