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"