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react频繁渲染背景图性能开销

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react频繁渲染背景图性能开销

需求
1、接口A返回一组背景图
2、接口B返回显示某一张背景图
3、用户根据事件切换背景图
现在思路
通过state显示隐藏子组件，子组件是背景图List生成的多个Div。

问：
切换背景图加载效率现在是否是最低，如果可以优化请指明方法？

通过chrome network弱网和memory工具没观察比较出实际性能开销，
大家有哪些查看性能工具吗？


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与恶龙缠斗过久,自身亦成为恶龙；凝视深渊过久,深渊将回以凝视…
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