【统计结果】: 
〖0次〗: 01,03,05,06,07,08,10,11,13,14,15,18,21,24,27,28,30,33,35,39,43,44,（共22个）
〖1次〗: 04,09,12,16,17,19,22,23,26,29,31,32,34,36,37,38,40,41,42,45,47,48,49,（共23个）xxxxxxx
〖2次〗: 02,20,25,46,（共4个）xxxxxxx