The stylesheet attempts to guess the file separator for your system by querying. 和其他屬性試圖猜測系統所用的文件分隔符。
This prevents any missing file errors you might get as a result of using the wrong delimiter, and it makes your code more portable. 這樣可以防止由於使用分隔符而導致文件丟失錯誤,同時這樣還可以讓你的代碼更輕便。