正则表达式cat /etc/passwd | sed -r 's/\b([a-zA-Z])/\u\1\u/g‘cat /etc/passwd | sed -r 's/\b([a-zA-Z])/\u\1\u/g‘主要是那个\u
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![正则表达式cat /etc/passwd | sed -r 's/\b([a-zA-Z])/\u\1\u/g‘cat /etc/passwd | sed -r 's/\b([a-zA-Z])/\u\1\u/g‘主要是那个\u](/uploads/image/z/11395514-2-4.jpg?t=%E6%AD%A3%E5%88%99%E8%A1%A8%E8%BE%BE%E5%BC%8Fcat+%2Fetc%2Fpasswd+%7C+sed+-r+%27s%2F%5Cb%28%5Ba-zA-Z%5D%29%2F%5Cu%5C1%5Cu%2Fg%E2%80%98cat+%2Fetc%2Fpasswd+%7C+sed+-r+%27s%2F%5Cb%28%5Ba-zA-Z%5D%29%2F%5Cu%5C1%5Cu%2Fg%E2%80%98%E4%B8%BB%E8%A6%81%E6%98%AF%E9%82%A3%E4%B8%AA%5Cu)
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正则表达式cat /etc/passwd | sed -r 's/\b([a-zA-Z])/\u\1\u/g‘cat /etc/passwd | sed -r 's/\b([a-zA-Z])/\u\1\u/g‘主要是那个\u
正则表达式cat /etc/passwd | sed -r 's/\b([a-zA-Z])/\u\1\u/g‘
cat /etc/passwd | sed -r 's/\b([a-zA-Z])/\u\1\u/g‘
主要是那个\u
正则表达式cat /etc/passwd | sed -r 's/\b([a-zA-Z])/\u\1\u/g‘cat /etc/passwd | sed -r 's/\b([a-zA-Z])/\u\1\u/g‘主要是那个\u
貌似正则里没这个\u.