D3+ReactJS网络图在连续更新图形后会无限期地挂起浏览器。

一种解决方法是通过使用D3的过渡来缓解更新的压力。使用React的生命周期方法componentDidUpdate()，以检测数据是否已经更新，然后使用D3的过渡方法来更新网络图。这样，D3只会更新需要更改的元素，而不是重新绘制整个图形，从而降低了更新的成本。以下是一个示例代码：

import React, { Component } from 'react';
import * as d3 from 'd3';
const width = 500;
const height = 500;
class Graph extends Component {
  constructor(props) {
    super(props);
    this.state = {
      nodes: [],
      links: []
    };
  }
  componentWillUnmount() {
    clearInterval(this.timer);
  }
  componentDidMount() {
    this.timer = setInterval(() => {
      const newNodes = [
        { id: 1, name: 'Node 1' },
        { id: 2, name: 'Node 2' },
        { id: 3, name: 'Node 3' },
        { id: 4, name: 'Node 4' },
        { id: 5, name: 'Node 5' }
      ];
      const newLinks = [
        { source: 1, target: 2 },
        { source: 2, target: 3 },
        { source: 3, target: 4 },
        { source: 4, target: 5 },
        { source: 5, target: 1 }
      ];
      this.setState({
        nodes: newNodes,
        links: newLinks
      });
    }, 1000);
  }
  componentDidUpdate() {
    const { nodes, links } = this.state;
    const svg = d3.select(this.refs.canvas);
    const node = svg.selectAll('.node')
      .data(nodes, d => d.id);
    node.transition()
      .duration(500)
      .attr('fill', 'green');
    node.enter()
      .append('circle')
      .attr('class', 'node')
      .attr('r', 10)
      .merge(node)
      .attr('cx', (d, i) => (i * 100) + 50)
      .attr('cy', height / 2)
      .attr('fill', 'red');
    node.exit().remove();
    const link = svg.selectAll('.link')
      .data(links);
    link.enter()
      .append('line')
      .attr('class', 'link')
      .merge(link)
      .attr('x1