Pan 🍳 says to YSITD
η„ΆεΎŒζŠŠ for-loop ηš„ strings.Replace() ζ›ζˆζ Ήζ“š position 插ε…₯ηš„ O(n) ε―«ζ³•οΌŒι€ŸεΊ¦ζ―” Regex 那個更鑯著 owo