lsif573 issues

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                                            lsif573

请问压缩图相比原图压缩比是多少?

![屏幕快照 2019-04-16 下午8 41 35](https://user-images.githubusercontent.com/8908244/56210295-1a071000-6088-11e9-98c3-ef7b7ec710b2.png)