1,包含a和b:^(?=.*a)(?=.*b).*$ 补充,如果多行里面有a和b那么就是下面表达式,因为.只是正则中除了\n的任意字符,想要匹配任意字符需要(.|\n)^(?=(.|\n)*a)(?=(.|\n)*b)(.|\n)*$ 2,包含a不包含b:^((?!b.)*a((?!b).)*$ 例:包含admin且不包含abc^((?!abc).)*admin((?!abc).)*$ 3,...
Your CLT does not support macOS 11更新最新系统后无法使用brew installbrew install xxx然后就报错Error: Your CLT does not support macOS 11. 2 It is either outdated or was modified. 常规解决办法先删除旧的命令行工具sudo rm -rf /Librar...