antd4，使用表格表单，怎么绑定字段名

Question

import { FormInstance, Input, Table, Form, Button } from "@jd/antd";
import React from "react";
import "./index.less";

type Item = {
  id: string
  name: string
  age: string
}
export interface TestListProps {

}

export interface TestListState {
  dataSource: Item[]
}

class TestList extends React.Component<TestListProps, TestListState> {
  formRef = React.createRef<FormInstance>();
  constructor(props: TestListProps) {
    super(props);
    this.state = { dataSource: [] };
  }
  handleClick = () => {
    this.formRef.current?.validateFields().then((values) => {
      const _params = values;
      console.log(_params);
    }).catch(err => {
      console.log(err);
    });
  }
  handleAdd = () => {
    const { dataSource } = this.state;
    this.setState({
      dataSource: [...dataSource, {id: "", name: "", age: ""}]
    });
  }
  render() {
    const { dataSource } = this.state;
    const _columns = [
      {
        title: "id",
        render: (text: any, record: any, index: number) => {
          return <Form.Item name={`${(dataSource[index] as any).id}`}>
            <Input></Input>
          </Form.Item>;
        }
      },
      {
        title: "name",
        render: (text: any, record: any, index: number) => {
          return <Form.Item name={`${(dataSource[index] as any).name}`}>
            <Input></Input>
          </Form.Item>;
        }
      },
      {
        title: "age",
        render: (text: any, record: any, index: number) => {
          return <Form.Item name={`${(dataSource[index] as any).age}`}>
            <Input></Input>
          </Form.Item>;
        }
      }
    ];
    return (
      <div>
        <Form ref={this.formRef} >
          <Table
            columns={_columns}
            dataSource={dataSource}
            rowKey={"id"}
          ></Table>
        </Form>
        <Button type="primary" onClick={this.handleAdd}>添加</Button>
        <Button type="primary" onClick={this.handleClick}>提交</Button>
      </div>);
  }
}

export default TestList;

添加一行后，输入1，三个输入框都是1了，点击提交获取到表单的值为：
{"": "1"}

我想达到的效果是添加两行，输入框的依次输入1，2，3，4，5，6，点击提交按钮后得到表单的值为：

[
{id:1,name:2,age: 3},
{id:4,name:5,age: 6}
]

请问怎么修改下？