type Corner = `${'top' | 'bottom'} - ${'left' | 'right'}`
type Corner = Capitalize<`${'top' | 'bottom'} - ${'left' | 'right'}`>
// "Top - left" | "Top - right" | "Bottom - left" | "Bottom - right"标签：TypesScript,right,Bottom,V4,Corner,left From： https://www.cnblogs.com/Answer1215/p/16613132.html