<!-- element表单组件 -->
<el-form
:model="ruleForm"
label-position="right"
ref="ruleForm"  // 被ref 标记的
status-icon
size="small"
inline
:rules="rules"
label-width="150px"
class="demo-ruleForm"
>

<el-form-item class="addProductA b" label="产品名称" prop="productKind">
<!-- <el-input v-model.number="ruleForm.productKind" maxlength="11" :disabled="isScan" placeholder="请输入产品名称"></el-input> -->
<el-cascader
:options="productsDataOptions"
v-model="ruleForm.productKind"
:disabled="isScan"
style="width:300px;"
size="small"
clearable
placeholder="试试搜索：指南"
filterable
ref="cascaderAddr" // 被ref 标记的

@change="handlerSelectProductsWithUnit"
:show-all-levels="false"
></el-cascader>

let obj = {};
    obj = this.arr.find((item) => {
     return item.id === value;
    });