我建议使用 (?-i) 或 (?-i:...) 以避免选项出现问题，并使用 + 而不是 {1,} 提高可读性(恕我直言).

I suggest turning off case insensitivity inside the regex pattern with (?-i) or (?-i:...) to avoid issues with the options, and also using a + instead of {1,} increases readability (IMHO).

'(?-i)[a-z]+[A-Z][A-Za-z]+'

即使未启用 Aa(区分大小写的搜索)，模式仍以区分大小写的方式处理.

Even though the Aa (case sensitive search) is not enabled, the pattern is still handled in a case sensitive way.