- 第 1 位固定为数字 1;
- 第 2 位可能是 3,4,5,6,7,8,9;
- 第 3 位到第 11 位我们认为可能是 0-9 任意数字。
code: regex-phone
code: mode
code: get-word
code: duplicate-str
code: replace-duplicate-str
code: valid-password
code: match-num
code: idcard
code: zip-code
code: qq
code: chinese
code: chinese
code: datetime
code: email
P15.直接统计文章单词频次TOP10
grep -Po '\w+' article.txt | sort | uniq -c | sort -nr | head -10