GenerateCharacter随机产生0~9和A~z之间的一个字符 inline TCHAR GenerateCharacter() const { switch (rand() % 3) { case 0 : return( 'a' + ( rand() % 26 ) ); case 1 : return( 'A' + ( rand() % 26 ) ); default: return( '0' + ( rand() % 10 ) ); } }