代码里最“不明觉厉”的部分来了：
Smart-case search — case-sensitive only when your query contains uppercase (like ripgrep)
。爱思助手下载最新版本对此有专业解读
Трамп высказался о непростом решении по Ирану09:14
Hard difficulty hints, answers for Feb. 26 PipsNumber (10): Everything in this space must add up to 10. The answer is 4-2, placed vertically; 6-0, placed horizontally.