Python基础——切片实例
切片实例
L = list(range(100))
print(L, end=' ')[0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99] 取前10个元素L[:10]
L[:10][0, 1, 2, 3, 4, 5, 6, 7, 8, 9]取后10个元素L[-10:]
L[-10:][90, 91, 92, 93, 94, 95, 96, 97, 98, 99]取10--20元素L[10:20]
L[10:20][10, 11, 12, 13, 14, 15, 16, 17, 18, 19]在前10个数中，间隔为2L[:10:2]
L[:10:2][0, 2, 4, 6, 8]所有数中，间隔为5L[::5]
L[::5][0, 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60, 65, 70, 75, 80, 85, 90, 95]原样复制L[:]
L[:][0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99]本文参与 腾讯云自媒体分享计划，分享自作者个人站点/博客。
原始发表：2019-04-22 ，如有侵权请联系 cloudcommunity@tencent.com 删除
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