Python练习_1 水仙花数_3

突然发现结果有异常

[ 5 ] PPDI 8  =  4150
[ 5 ] PPDI 9  =  4151

前面的[ 5]表示是五位数，而抛出的结果却是4位数的。

for val in range(min_val, 10 ** n):

发现在这段代码中，遍历的起始位置是min_val, 导致位数n都要丛min_val开始遍历，

才导致这种结果。

现修改为:

for val in range(10 ** (n - 1), 10 ** n):

结果正确不说，还缩短了运行时间：

Input digit(>2): 8
Start_time =  2017-11-25 13:48:09.852904
2017-11-25 13:48:09.853433 [ 3 ] PPDI 1  =  153 [ 0:00:00.000529 ]
2017-11-25 13:48:09.854518 [ 3 ] PPDI 2  =  370 [ 0:00:00.001614 ]
2017-11-25 13:48:09.854620 [ 3 ] PPDI 3  =  371 [ 0:00:00.001716 ]
2017-11-25 13:48:09.854858 [ 3 ] PPDI 4  =  407 [ 0:00:00.001954 ]
2017-11-25 13:48:09.863425 [ 4 ] PPDI 5  =  1634 [ 0:00:00.010521 ]
2017-11-25 13:48:09.890956 [ 4 ] PPDI 6  =  8208 [ 0:00:00.038052 ]
2017-11-25 13:48:09.895797 [ 4 ] PPDI 7  =  9474 [ 0:00:00.042893 ]
2017-11-25 13:48:10.114127 [ 5 ] PPDI 8  =  54748 [ 0:00:00.261223 ]
2017-11-25 13:48:10.301516 [ 5 ] PPDI 9  =  92727 [ 0:00:00.448612 ]
2017-11-25 13:48:10.303165 [ 5 ] PPDI 10  =  93084 [ 0:00:00.450261 ]
2017-11-25 13:48:12.818301 [ 6 ] PPDI 11  =  548834 [ 0:00:02.965397 ]
2017-11-25 13:48:19.925943 [ 7 ] PPDI 12  =  1741725 [ 0:00:10.073039 ]
2017-11-25 13:48:35.710993 [ 7 ] PPDI 13  =  4210818 [ 0:00:25.858089 ]
2017-11-25 13:49:11.289820 [ 7 ] PPDI 14  =  9800817 [ 0:01:01.436916 ]
2017-11-25 13:49:12.110367 [ 7 ] PPDI 15  =  9926315 [ 0:01:02.257463 ]
2017-11-25 13:50:53.876163 [ 8 ] PPDI 16  =  24678050 [ 0:02:44.023259 ]
2017-11-25 13:50:53.876217 [ 8 ] PPDI 17  =  24678051 [ 0:02:44.023313 ]
2017-11-25 13:58:18.654727 [ 8 ] PPDI 18  =  88593477 [ 0:10:08.801823 ]
Done!
Run Time :  0:11:28.178857