1 Python代码
2
3 txt = '''小学数学的坑爹题4
4
5 小学数学寒假作业中的变态题
6 某4位数乘以一位数,积也是4位数!
7 要求:只能使用1,2,3,4,5,6,7,8,9这九个数字,而且不能重复!
8 请问是:????× ?= ????'''
9
10 print(txt)
11 print('---'*11)
12 nmb = "123456789"
13 n = 0
14 print('答:')
15 for i in range(1234, 9877):
16 for v in range(1, 10):
17 s = i * v
18 stt = str(i) + str(v) + str(s)
19 if len(stt) > 9:
20 break
21 n = 0
22 for m in nmb:
23 if not m in stt:
24 break
25 else:
26 n+=1
27 if n == 9:
28 print( i,'x', v,'=', s)
29 input()
30
31 '''''---------------------------------
32 答:
33 1738 x 4 = 6952
34 1963 x 4 = 7852
35 '''