• 合并的方法

const temp = {};
const mergeCells = (text, array, columns) => {
    let rowSpan = 0
    if (array.length == 1) {
        rowSpan = 1
    } else {
        if (text !== temp[columns]) {
            temp[columns] = text
            array.forEach((item, index, arr) => {
                if (item[columns] === temp[columns]) {
                    rowSpan++
                }
            })
        }
    }
    return rowSpan
};

• 使用

{
                    title: 'demo',
                    align: "center",
                    dataIndex: 'name',
                    customRender: (text, record, index) => {
                        const obj = {
                            children: text,
                            attrs: {}
                        }
                        obj.attrs.rowSpan = mergeCells(text, this.datalist, 'name')
                        return obj
                    }
                },
 // this.datalist => table数据