需求：动态合并单元格
工具：avue(基于element封装的) + vue
实现方法：

html
<avue-curd :option=“option" :data="tabledata" :span-method="getSpanMethod"><avue-curd>
js
mounted(){
this.spanAgg.companyCode = this.setRowSpan('companycode')
this.spanAgg.rightsType = this.setRowSpan('rightsType')
}
methods:{
//合并
	setRowSpan(value){
		let rowAgg = {
			spanArr = [],
			position:0
		}
	this.tableData.forEarch((item,index) =>{
		if(index === 0){
			rowAgg.spanArr.push(1)
			rowAgg.position = 0
		}else{
			if(this.tableData[index][value] === this.tableData[index -1][value]){
				rowAgg.spanArr[rowAgg.position] +=1;
				rowAgg.spanArr.push(1)
			}else{
				rowAgg.spanArr.push(1)
				rowAgg.position = index
			}
		})
	},
	getSpanMethod({row,column,rowIndex,columnIndex}){
		if(columenIndex==0){
			const _row = this.spanAgg.companyCode.s