嗨,我想匹配小于或等于100的数字,它可以是0-100之内的任何值,但正则表达式不应匹配大于100的数字,如120 130,150,999等.
尝试这个
\b(0*(?:[1-9][0-9]?|100))\b
说明
"
\b # Assert position at a word boundary
( # Match the regular expression below and capture its match into backreference number 1
0 # Match the character “0” literally
* # Between zero and unlimited times,as many times as possible,giving back as needed (greedy)
(?: # Match the regular expression below
# Match either the regular expression below (attempting the next alternative only if this one fails)
[1-9] # Match a single character in the range between “1” and “9”
[0-9] # Match a single character in the range between “0” and “9”
? # Between zero and one times,giving back as needed (greedy)
| # Or match regular expression number 2 below (the entire group fails if this one fails to match)
100 # Match the characters “100” literally
)
)
\b # Assert position at a word boundary
"
访问here以备将来出现问题.
