elementUI的动态表单验证哪里有问题，看半天没看出来。求大佬指点。

Question

 <div v-for="(item, i) in list.payRecordList" :key="i">
            <!-- <el-form label-width="70px" :model="list" :rules="rulesname"> -->
            <i class="el-icon-delete" @click="delshan(item, i)" v-if="!use"></i>
            <div class="half-item-1">
              <el-form-item
                label="已付款金额"
                :prop="'item.' + i + '.payMoney'"
                :rules="{
                required:true,validator:checkName,triggger:'change'
                }"
              >
                <el-input
                  :disabled="item.isuse"
                  size="small"
                  v-if="islook"
                  v-model="item.payMoney"
                ></el-input>
</div>

正则验证数字和小数点

data(){
 let checkName = (rule, value, callback) => {
      if (value != "") {
        if (!/^\d+(\.\d+)?$/.test(value))
          return callback(new Error("仅支持数字"));
        else callback();
      } else callback();
    };
return{
 list: {
        name: "", //项目名称
        supplierId: "", //供应商id
        responsibleId: null, //信息科责任人id
        contractStartDateStr: "", //合同开始日期
        contractEndDateStr: "", //合同结束日期
        approvalCreateDateStr: "", //立项日期
        bidDateStr: "", //招标日期
        bidOpenDateStr: "", //开标日期
        budget: null, //预算
        bidPrice: null, //中标价
        responsibleName: "", //信息科责任人名字
        payRatio: "",
        supplierName: "",
        supplierInfoResultVo: {
          name: "",
          address: "",
          note: "",
        },
        payRecordList: [
          {
            id: "",
            projectId: "",
            payMoney: null,
            payDateStr: "",
            isuse: true,
          },
        ],
      },

}
}

Answer 1

:prop="'payRecordList.' + i + '.payMoney'"