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请问lua中如何正则匹配固定长度的特征串？
ssdrliu
比如我想匹配一个32字节的md5字符串，string.match(md5, "[%x]{32}")这样是匹配不到的，lua貌似不支持{}语法。。。
请大神们支招~
uangxi
ngx.re.find ngx.re.match
