vue elementUI自定义表头，表头加个图标

需求是表头加个图标，保留排序功能

questionIcon(h, { column, $index }) {
            console.log(h);
            console.log(column);
            console.log($index);
            return h("span", [
                h("span", {
                    class: "questionIcon",
                    on: {
                        click: () => {
                            console.log(`${column.label}   ${$index}`);
                        }
                    }
                }),
                h("span", column.label)
            ]);
        }

<el-table-column label="引流类型" width="90" :render-header="questionIcon" sortable="custom">
                    <template slot-scope="scope">
                        <span class="baiduMobile-icon">{{ scope.row.t3 }}</span>
                    </template>
                </el-table-column>

说明：

sortable="custom" 表示后端排序

:render-header="questionIcon" 表示自定义表头的样式，不影响现有的排序功能

效果如下：

由于需求的需要，经过改造实现自定义参数：

questionIcon(h, { column, $index }, text) {
            console.log(text);
            console.log(h);
            console.log(column);
            console.log($index);
            return h("span", [
                h("span", {
                    class: "questionIcon",
                    on: {
                        click: () => {
                            console.log(`${column.label}   ${$index}`);
                        }
                    }
                }),
                h("span", column.label)
            ]);
        }

<el-table-column label="引流类型" width="90" :render-header="(h,obj) => questionIcon(h,obj,'test')" sortable="custom">
                    <template slot-scope="scope">
                        <span class="baiduMobile-icon">{{ scope.row.t3 }}</span>
                    </template>
                </el-table-column>