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I solved it myself. It works fine,if use [] as follows

ip.src == 203.141.241.0/24 && data.data matches"\xcc\xcc.{6,6}\x37\x11.*[\x24][\x02]"

or

ip.src == 203.141.241.0/24 && data.data matches"\xcc\xcc.{6,6}\x37\x11.*[\x24]\x02"

following will not work

ip.src == 203.141.241.0/24 && data.data matches"\xcc\xcc.{6,6}\x37\x11.*\x24[\x02]"

This may be a bug in the regular expression.