可进行组合的枚举

   enum MatchFlag {
        MatchExactly = 0,
        MatchContains = 1,
        MatchStartsWith = 2,
        MatchEndsWith = 3,
        MatchRegExp = 4,
        MatchWildcard = 5,
        MatchFixedString = 8,
        MatchCaseSensitive = 16,
        MatchWrap = 32,
        MatchRecursive = 64
    };