# 流量优化

你的自动化脚本经常会下载不必要的资源，例如图片、样式表、字体和其他媒体文件。这些文件会消耗带宽，并可能拖慢你的抓取操作。

你可以完全阻止这些不必要的资源加载。通过拦截网络请求并有选择地阻止媒体文件，你可以只专注于你实际需要的数据。

这些代码片段可与 Playwright 和 Puppeteer 一起使用，以在媒体资源下载之前将其阻止：

{% tabs %}
{% tab title="Python" %}

```python
async def block_resources(route):
    request = route.request
    resource_type = request.resource_type
    if resource_type in ['image', 'stylesheet', 'media', 'font']:
        await route.abort()
    else:
        await route.continue_()
await page.route('**/*', block_resources)
```

{% endtab %}

{% tab title="JavaScript" %}

```javascript
await page.route('**/*', (route) => {
    const request = route.request();
    const type = request.resourceType();

    if (['image', 'stylesheet', 'media', 'font'].includes(type)) {
        return route.abort();
    }

    return route.continue();
});
```

{% endtab %}
{% endtabs %}


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