In VS Code, there are several shortcuts for selecting multiple lines of content. The key is to select the appropriate method according to the scene. The first is to use the left button of the Alt mouse to add multiple cursors, which is suitable for alignment and modification of multiple contents; the second is the shortcut key Ctrl Alt ↑ / ↓ to add upper and lower cursors, which is suitable for quick editing of multiple rows; the third is to use Ctrl D to select the same phrases one by one, which is suitable for modifying the recurring variable names or function names; the fourth is to select a column in batches: Shift Alt Drag the mouse to handle tabular text or fixed format data. Flexible switching of these methods in different scenarios can greatly improve the efficiency of code writing.
In VS Code, there are actually several shortcuts to select multiple lines of content. The key is to select the appropriate method according to the scene. Here are a few common techniques that can double your efficiency when editing code.
Use the Alt left mouse button to add multiple cursors
This is the most intuitive way to edit multiple lines. Hold down the Alt key ( Option on Mac), and click on multiple places you want to insert the cursor with your mouse, and each click will add a cursor. After entering the text, all cursor locations will be edited synchronously.
- Suitable for alignment and modification of multiple contents, such as prefixing or suffixing several rows of variables
- You can drag the mouse to select an area vertically to achieve batch editing of the entire text
This method is simple and direct, but requires manual positioning of each row. If you face dozens of rows or even hundreds of rows, it will not be efficient enough.
Shortcut key Ctrl Alt ↑ / ↓ Add upper and lower cursors
If you already have a cursor in one position, you can use Ctrl Alt ↑ or ↓ to add an extra cursor up or down to the previous or next line.
- Press to add one line of cursor at a time, and you can select many lines by pressing continuously.
- Suitable for quick editing of multiple lines of continuous lines, such as commenting out several lines of code at the same time
Note: This method will not automatically skip empty lines or match content, and can only add cursors in order.
Use Ctrl D to select the same phrases one by one
When you want to modify multiple identical words at the same time, select the word first, and then press Ctrl D multiple times. VS Code will select the next same word in turn, and add a cursor to each time.
- Suitable for modifying repeated variable names, function names, etc.
- If no word is needed in the middle, you can use
Ctrl K, Ctrl Dto skip the current item
This function is very practical, especially when refactoring the code, which can help you quickly locate and modify multiple targets.
Select a column in batches: Shift Alt Drag the mouse
If you want to select a vertical area (such as a column of data in a log file), you can use Shift Alt and drag the mouse to select the rectangle.
- It also supports keyboard direction key movement selection range
- Commonly used to process table text or fixed format data
This method is especially suitable for extracting specific column content from a bunch of text, or deleting a column at once.
Basically these are the common methods. You can switch flexibly in different scenarios, and the speed of writing code after mastering it will be much faster.
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