case sensitive

基本解释

This check is also case sensitive.
此检查也是区分大小写的。
Whilst the attribute names are not case sensitive, the values may be (unless compared with ~=).
属性名不是大小写敏感的，值可能是（如果不用~=作比的话）。
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).
通过把名称放在双引号中，可以避开这些规则，使用双引号允许名称区分大小写以及包含附加字符（包括空格）。

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