echarts饼图底下增加图片

要在echarts饼图底下增加图片，可以通过在echarts的option中添加背景图片来实现。你可以在option中的series中配置一个饼图和一个image组件，将饼图放在上面，将image放在下面作为背景图。具体的代码如下所示：

option = {
  series: [
    {
      name: '访问来源',
      type: 'pie',
      radius: ['30%', '55%'],
      data: [
        { value: 135, name: '视频广告' },
        { value: 1048, name: '百度' },
        { value: 251, name: '谷歌' },
        { value: 147, name: '必应' },
        { value: 102, name: '其他' }
      ]
    },
    {
      type: 'image',
      z: -1, // 设置为负数，使其在饼图下方
      style: {
        image: 'your-image-url', // 替换为你的图片链接
        x: 'center',
        y: 'center',
        width: '100%',
        height: '100%'
      }
    }
  ]
};

在这个例子中，我们在series中添加了一个image组件，并设置了背景图片的链接、位置和大小。通过将image的z值设置为负数，使其在饼图下方显示。你可以将`your-image-url`替换为你自己的图片链接。这样就可以在echarts饼图底下增加图片了。<span class="em">1</span><span class="em">2</span><span class="em">3</span>
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