新增一个数组传递给后端

实现的效果：

页面

<div style="margin-bottom: 10px" v-if="totalPrice"><p style="font-weight: bolder;margin-bottom: 10px">支付计划<el-button type="text" size="small" @click="addPayInfo" icon="el-icon-plus">添加</el-button></p><ul v-for="(p,i) of payList" :key="i" class="pay-info"><li><span>第{{i+1}}笔支付金额:</span><el-input v-model="p.price"@input="handleInput($event,i,'pay');onCalculate(p,i,createParams.commodityList[0].price)":disabled="!mark && p.is_amend"style="width: 200px;margin-right: 10px" size="small"></el-input></li><li><el-switchstyle="display: block"v-model="p.is_pay":disabled="!mark && p.is_amend"active-color="#13ce66"inactive-color="#ff4949"active-text="已支付"inactive-text="未支付"></el-switch></li><li><span style="vertical-align: top">备注：</span><el-input type="textarea" v-model="p.desc" :disabled="!mark && p.is_amend" style="width: 200px;margin-right: 10px" size="small"></el-input></li><li><el-button type="danger" size="mini" @click="deletePayInfo(i)" :disabled="!mark && p.is_amend" v-if="payList.length>1">删除</el-button></li></ul><div><span>需支付总价：{{totalPrice}}元</span><span style="margin-left: 20px;color:#67C23A ">已计划支付总价：{{payTotal}}元</span><span style="margin-left: 20px;color:#F56C6C " >未计划支付总价：<span style="color: #409EFF;cursor: pointer" @click="showUnPayTotal(unPayTotal)">{{unPayTotal}}</span>元</span></div></div>

data:{totalPrice : 300 //总金额payList : [{price: '',desc:'',is_pay: false}] //传递给后端的数组
}

数组内增加数据

addPayInfo(){this.payList.push({price: '',desc:'',is_pay: false})},

数组内删除数据

deletePayInfo(i){this.payList.splice(i,1)let sum = this.payList.reduce(function(acc, obj) {return acc + Number(obj.price);}, 0);this.payTotal = sum>Number(totalPrice)?0:sumthis.unPayTotal = Number(totalPrice) - this.payTotal},

剩余金额点击后直接赋值到未输入金额的输入框内

  showUnPayTotal(val){console.log(val)if(val>0 && this.payList.find(item=>item.price==='')){this.payList.find(item=>item.price==='').price = valthis.unPayTotal = 0}},

输入框值改变后执行

    handleInput(val,index,type){let dat = ("" + val) // 第一步：转成字符串.replace(/[^\d^\.]+/g, "") // 第二步：把不是数字，不是小数点的过滤掉.replace(/^0+(\d)/, "$1") // 第三步：第一位0开头，0后面为数字，则过滤掉，取后面的数字.replace(/^\./, "0.") // 第四步：如果输入的第一位为小数点，则替换成 0. 实现自动补全.match(/^\d*(\.?\d{0,2})/g)[0] || "";if(type==='commodity'){this.totalPrice = datthis.unPayTotal = Number(dat) - this.payTotal}else if(type==='pay'){this.payList[index].price = dat}},