el-table表头添加说明

1、el-table-column添加render-header

2、编写render函数

  renderTipsHeader(h, { column }, item) {return h('span',[h('span', column.label),h('el-tooltip',{props:{effect:'dark',content:item.headertip,placement:'top'},},[h('i', {class:'el-icon-question',style:'color:#C0C4CC;margin-left:5px;'})])]);

3、columns中添加hedertip