a=[1,2,3,4,5,6,7,8,9,10,10,11,12,13,14,15,16,17,18,19,20] a_len=int(len(a)) #print a_len for x in range(a_len): y=-x-1 #print x,y if a[x]==a[y]: print a[x]
时间: 2024-08-04 15:45:27
a=[1,2,3,4,5,6,7,8,9,10,10,11,12,13,14,15,16,17,18,19,20] a_len=int(len(a)) #print a_len for x in range(a_len): y=-x-1 #print x,y if a[x]==a[y]: print a[x]