vue el-table checkbox 复选框只能选中一个

 <el-table ref="multipleTable" @select-all="selectAll" @selection-change="tableSelected" @select="select" :data="tableData" border style="width: 100%" size="small" v-loading="tableLoading">
                <el-table-column type="selection" width="55">
                </el-table-column>

                <el-table-column prop="organization_name" label="纳税人名称"></el-table-column>
                <el-table-column prop="credit_rating" label="纳税人识别号" width=""></el-table-column>

                <el-table-column prop="earliest_effective_date" label="增值税专票地址,电话"></el-table-column>
                <el-table-column prop="uploader" label="增值税专票开户行及账号"></el-table-column>
            </el-table>

 select(selection, row) {
            if (selection.length > 1) {
                let del_row = selection.shift()
                this.$refs.multipleTable.toggleRowSelection(del_row, false)
            }
        },
        selectAll(selection) {
            if (selection.length > 1) {
                selection.length = 1
            }
        },