First, read the English article below.

The App Store is linked to your iCloud account, allowing it to keep track of your downloads; this way, you can re-install any app you've downloaded on an iPhone or similar iPad with the same iCloud information. The app store is a light blue icon with an encircled "A" made of paint brushes on it; you can usually find it on the home screen, or you can swipe down from the middle of your iPad's screen and type "App Store" into the search bar to find it. This will take you to the app update page. You'll find your app library here. This is a comprehensive list of every app you've ever downloaded on the current iCloud account. You can also tap "Not on This iPad" to view previously-downloaded apps. This will prompt the app to download to your home screen. The "Open" option becomes available when your app finishes downloading.  You can also exit the App Store and access the app from your home page. Depending on how many apps you have, the new app may be installed several swipes right of your iPad's home page. You have successfully installed an app from iCloud! 

Now, please write a short abstract for it in Chinese. Abstract:
点击App Store图标来打开它。 点击右下角的“更新”选项卡。 点击屏幕顶部的“已购项目”。 往下滚动，找到你想要下载的应用。 点击应用程序右侧带有向下箭头的云图标，将应用下载到主屏幕上。 点击“打开”直接打开应用。 开始体验新应用。