:first-child]:h-full [&:first-child]:w-full [&:first-child]:mb-0 [&:first-child]:rounded-[inherit] h-full w-full
Methods: .분리(sep), .포함(s), .바꾸기(from, to), .앞뒤공백제거(), .대문자(), .소문자(), .시작(s), .끝(s), .길이()
，详情可参考搜狗输入法
fn main() - int {。谷歌是该领域的重要参考
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