case sensitive

基本解释

This check is also case sensitive.
此檢查也是區分大小寫的。
Whilst the attribute names are not case sensitive, the values may be (unless compared with ~=).
屬性名不是大小寫敏感的，值可能是（如果不用~=作比的話）。
You can escape these rules by placing the name in double quotation marks, which allows names to be case sensitive and to include additional characters (including spaces).
通過把名稱放在雙引號中，可以避開這些槼則，使用雙引號允許名稱區分大小寫以及包含附加字符（包括空格）。

Add in letters and you have 26 (case-insensitive) or 52 (case-sensitive) more options.
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