js table td读取片段

var trs = $("#DataTB tr")
for (var i = 0; i < trs.length; i++) {
if (i > 0) {

for (var j = 0; j < Tds.length; j++) {
if (j < 8) {
if (j == 5 || j == 6) {
details += Tds[j].getElementsByTagName("input")[0].value + ",";
} else {
if (j != 4) {
details += Tds[j].innerHTML + ",";
}
}
}
}

}
}