解决antd vue的 Table组件selectedRows翻页后不保留上一页已选中数据

antd官方组件的onChange方法在分页重新加载数据的时候，没有清空selectedRowKeys，但是清空了selectedRowKeys，解决办法也很简单，不用onchange方法操作selectedRowKeys，用onselect和onselectAll来修改selectedRowKeys，

 onSelectChange(selectedRowKeys, selectedRows) {
      console.log('select', this.selectedRowKeys, this.selectedRowKeys)
      this.selectedRowKeys = selectedRowKeys
      // this.selectedRows = selectedRows  //不用onchange操作
    },

用onselect来操作

onSelect(record, selected, selectedRows, nativeEvent) {
      if (selected) {
        this.selectedRows.push(record)
        }else{
		const delIndex = this.selectedRows.findIndex((val) => {
          return val.id === record.id
        })
        this.selectedRows.splice(delIndex, 1)        
			}        
		},
},
onSelectAll: (selected, selectedRows, changeRows) => {
      if (selected) {
        this.selectedRows = this.selectedRows.concat(changeRows)
      }
      if (!selected) {
        let selectedRows = JSON.parse(JSON.stringify(this.selectedRows))
        const delIndex = []
        selectedRows.forEach((item, index) => {
          changeRows.forEach((val, itemIndex) => {
            if (item.id === val.id) {
              delIndex.push(index)
            }
          })
        })
        delIndex.forEach((item) => {
          delete selectedRows[item]
        })
        selectedRows = selectedRows.filter((item) => {
          return item !== undefined
        })
        this.selectedRows = selectedRows
      }
    },