https://qooah.com/2012/07/10/microsoft-%e5%86%8d%e8%88%87%e5%85%a9%e5%ae%b6%e7%94%9f%e7%94%a2-android-%e8%a8%ad%e5%82%99%e7%9a%84%e5%85%ac%e5%8f%b8%e7%b0%bd%e7%bd%b2%e5%b0%88%e5%88%a9%e5%8d%94%e8%ad%b0/