Selecting some text and pressing " already works in VSCode to surround a single item, and works for multi-line selections as well.
NOTE: this is language dependent. The language syntax must define opening and closing braces, e.g. quotes, braces, etc. So this will not work in a "plaintext" file, for example. Change your language mode with CTRL+SHIFT+P and type Change Language Mode
ENTER and select something like JavaScript where this is supported.
但你所追求的并不是那么有效。最好的选择是使用多光标。
Place the cursor at the start of the first line, press CTRL+ALT+DOWN to add another cursor below on the next line. Keep doing that until you have a cursor in front of all your words.
Then just type " then END then " and all your lines are surrounded by quotes.
NB: To check if you have a key bound, and what it is, you can always press CTRL+SHIFT+P and type Add Cursor Below
and if there's a keybinding it will show to the right of that text.