获取table中的所有行中的td值，包括input值和select值等

首先获取表对象document.getElementById("onceFeeTableId");

然后通过循环可以获取所有的行，tableObj.rows[i]，如果有需要可在循环里面再加一个循环，用来循环所有的列；

HTML：

 <table class="data-table data-table-border" id="onceFeeTableId">
                <thead>
                <tr>
                    <th>里程碑</th>
                    <th>计划完成时间</th>
                    <th>回款比例(%)</th>
                    <th>回款金额</th>
                    <th>说明</th>
                    <th>
                    
                        <button class="btn btn-secondary  btn-main" onclick="getOnceFeeValue()" name="addOneFeeTr">查看</button>
                    </th>
                </tr>
                </thead>
                <tbody id="oneFeeList">
                <tr>
                    <td>
                        <select class="form-control" name="markerName">
                            <option value="0">预付款</option>
                            <option value="1">到货</option>
                            <option value="2">初验</option>
                            <option value="3">终验</option>
                            <option value="4">自定义</option>
                        </select>
                    </td>
                    <td>
                        <input type="text" class="form-control date-picker" name="onePlanRentDateName" id="onePlanRentDateName1" onFocus="WdatePicker({maxDate:'#F{$dp.$D(\'onePlanRentDateName1\')}'})" />
                    </td>
                    <td>
                        <input type="text" class="form-control"  naem="paymentProportionName">
                    </td>
                    <td><input type="text" class="form-control"name = "paymentAmountName"></td>
                    <td><input type="text" class="form-control"name = "remarkName"></td>
                   
                </tr>
                </tbody>
            </table>

js:

//获取所有数据
function getOnceFeeValue(){
    var getOnceFeeValueArry = [];
    var tableObj = document.getElementById("onceFeeTableId");
    for (var i = 1; i < tableObj.rows.length; i++) {
        var getOnceFeeValueJson = {};
        var markerName = tableObj.rows[i].cells[0].getElementsByClassName("form-control").markerName.value;
        var onePlanRentDateName = tableObj.rows[i].cells[1].getElementsByClassName("form-control date-picker").onePlanRentDateName.value;
        var paymentProportionName = tableObj.rows[i].cells[2].getElementsByTagName("input")[0].value;
        var paymentAmountName = tableObj.rows[i].cells[3].getElementsByTagName("input")[0].value;
        var remarkName = tableObj.rows[i].cells[4].getElementsByTagName("input")[0].value;

        getOnceFeeValueJson.MARKER = markerName;
        getOnceFeeValueJson.PLAN_END_DATE = onePlanRentDateName;
        getOnceFeeValueJson.PAYMENT_PROPORTION = paymentProportionName;
        getOnceFeeValueJson.PAYMENT_AMOUNT = paymentAmountName;
        getOnceFeeValueJson.REMARK = remarkName;
        getOnceFeeValueArry.push(getOnceFeeValueJson);
    }
    console.log(getOnceFeeValueArry);
    //return itemArr;
}

界面：