Code Composer Studio - comment
Add Block Comment：选中几行代码 -> 鼠标右键 -> Source -> Add Block Comment
shortcut key: Ctrl + Shift + /
Remove Block Comment：
选中几行代码->鼠标右键->Source->Remove Block Comment
shortcut key: Ctrl + Shift + \
Toggle Comment：
选中几行代码->鼠标右键->Source->Toggle Comment
shortcut key: Ctrl + / (同时可取消注释)