jquery遍历table的tr获取td的值实现方法

<tbody id="history_income_list"><tr><td align="center"><input type="text" class="input-s input-w input-hs"></td><td align="center"><input type="text" class="input-s input-w input-hs"></td><td align="center"><input type="text" class="input-s input-w input-hs"></td><td align="center"><a class="" onclick="history_income_del(this);" href="###">删除</a></td></tr><tr><td align="center"><input type="text" class="input-s input-w input-hs"></td><td align="center"><input type="text" class="input-s input-w input-hs"></td><td align="center"><input type="text" class="input-s input-w input-hs"></td><td align="center"><a class="" href="###">删除</a></td></tr><tr><td align="center"><input type="text" class="input-s input-w input-hs"></td><td align="center"><input type="text" class="input-s input-w input-hs"></td><td align="center"><input type="text" class="input-s input-w input-hs"></td><td align="center"><a class="" href="###">删除</a></td></tr></tbody>

var trList = $("#history_income_list").children("tr")  for (var i=0;i<trList.length;i++) {    var tdArr = trList.eq(i).find("td");    var history_income_type = tdArr.eq(0).find("input").val();//收入类别    var history_income_money = tdArr.eq(1).find("input").val();//收入金额    var history_income_remark = tdArr.eq(2).find("input").val();//  备注        alert(history_income_type);    alert(history_income_money);    alert(history_income_remark);  }

$("#history_income_list").find("tr").each(function(){    var tdArr = $(this).children();    var history_income_type = tdArr.eq(0).find("input").val();//收入类别    var history_income_money = tdArr.eq(1).find("input").val();//收入金额    var history_income_remark = tdArr.eq(2).find("input").val();//  备注        alert(history_income_type);    alert(history_income_money);    alert(history_income_remark);          });