Holding down the key rolls over each character in the line, flipping the case of any alpha characters the editor comes across.

按着这个键，移动游标经过行中的每个字符，就会切换遇到的每个字母字符的大小写。

youdao

Holding down the key rolls over each character in the line, flipping the case of any alpha characters the editor comes across.

按着这个键，移动游标经过行中的每个字符，就会切换遇到的每个字母字符的大小写。

youdao