微信小程序 -----无限新增删除，同时算出总合算金额。

<view class="refuelMoney-main" style="padding-bottom: 200rpx;">
  <!-- <view class="add_record">添加加油记录</view> -->
  <view class="refuel-itemTextArea">
    <text style="width: 35%;">申请人</text>
   <view style="text-align: right;">{
  {userInfo.userCname}}</view>
  </view>
  <view class="refuel-itemTextArea">
    <text style="width: 35%;">所属部门</text>
    <view style="text-align: right;">{
  {userInfo.deptName}}</view>
  </view>
  <view class="refuel-itemTextArea">
    <text style="width: 35%;">职务</text>
    <view style="text-align: right;">{
  {userInfo.postName}}</view>
  </view>
  <view class="refuel-item">
    <text style="width: 35%;">出差开始时间</text>
    <pickerYMDHM name="pickerStart" bind:onPickerChange="onPickerChange" date="{
    {gasDateTime}}"></pickerYMDHM>
  </view>
  <view class="refuel-item">
    <text style="width: 35%;">出差结束时间</text>
    <pickerYMDHM name="pickerStart" bind:onPickerChange="onPickerChange2" date="{
    {gasDateTime2}}"></pickerYMDHM>
  </view>
  <view class="refuel-itemTextArea">
    <text style="width: 35%;">出差天数</text>
    <input type="number" style="text-align: right;" bindinput="cliInput" data-name="days" placeholder="请输入出差天数" value="{
    {days}}" />
  </view>
  <view class="refuel-item">
    <text style="width: 35%;">申请日期</text>
    <view style="text-align: right;">{
  {gasDateTime3}}</view>
  </view>
  <view class="refuel-itemTextArea">
    <text style="width: 35%;">单据数量</text>
    <input type="number" style="text-align: right;" bindinput="cliInput" data-name="number" placeholder="请输入单据数量" value="{
    {number}}" />
  </view>
  <view class="refuel-itemTextArea">
    <text style="width: 35%;">合计金额</text>
	<input type="digit" style="text-align: right;" disabled value="{
    {amount}}" placeholder="合计金额" />
    <!-- <input type="digit" style="text-align: right;" bindinput="cliInput" data-name="amount" placeholder="请输入合计金额" value="{
   {amount}}" /> -->
  </view>
  <view class="refuel-itemTextArea">
    <text style="width: 35%;">出差理由</text>
    <input type="text" style="text-align: right;" bindinput="cliInput"