1234组成无重复三位数

1234组成无重复三位数

# 1234组成无重复三位数

def order_list(n):
    count = 0
    for a in range(1,n+1):
        for b in range(1,n+1):
            for c in range(1,n+1):
                if a!=b and b!=c and a!=c:
                    count += 1
                    print('{}{}{}'.format(a,b,c))
    return count
print(order_list(4))

123
124
132
134
142
143
213
214
231
234
241
243
312
314
321
324
341
342
412
413
421
423
431
432
24