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1. Use the hotkeys to open the application in the dock. option+1 opens the 1st app in your dock, like Linux and Windows.

   Swift 31 1

2. Automatically get your mysql database backup and uploading it to the Object Storage.（自动获取 MySQL 数据库备份文件并将其上传到对象存储。）

   JavaScript 30 4

5. TypeScript 算法练习。

   TypeScript 12 1

6. Print PDF files in Windows OS by node.js.

   JavaScript 30 9