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2026-09-16 16:00:18 +08:00
parent 130e0d7d1e
commit 99877eddba
1 changed files with 2 additions and 0 deletions
@@ -1,5 +1,7 @@
 l = [1,2,3,4,5,6,7,8,9]
 # list[start:stop:step]
+# 绝对值决定"隔几个取一个"
+# 正数表示从左到右取，负数表示从右到左取
 print(l[::2])
 print('-------------')
 print(l[::3])