第3个回答 2011-07-19
枚举:
111,222,333,444,555,666,777,888,999
102,120,123,132,135,153,147,174,159,195
201,204,210,213,231,234,240,243,246,264,258,285
306,312,321,324,342,345,354,360,369,396,357,375
402,408,417,471,420,423,432,456,465,426,462,480
513,531,519,591,528,582,537,573,546,564,534,543,567,576
603,630,639,693,648,684,657,675,642,624,654,645,678,687
714,741,735,753,759,795,756,765,768,786,789,798
804,840,825,852,846,864,879,897,867,876,
915,951,936,963,957,975,978,987
共有9+10+12+12+12+14+14+12+10+8=113个