1.  方案:创建闭包
    2. <el-date-picker
    3.               v-model="paramForm.startDate"
    4.               type="date"
    5.               format="yyyy-MM-dd"
    6.               value-format="yyyy-MM-dd"
    7.               placeholder="选择日期"
    8.               @change="item => createAtReceiptFun(item,'startDate')">
    9.             </el-date-picker>
    11.    <el-autocomplete
    12.               v-model="scope.row.supplierName"
    13.               :fetch-suggestions="querySearchSupplier"
    14.               placeholder="请输入内容"
    15.               @select="item=>handleSelectSupplier(item,scope.$index)"
    16.             ></el-autocomplete>