Slicing works by stating the starting index, the ending index, and an optional step size, all separated by semicolons.
分段的工作方式是声明开始索引、结束索引和一个可选的步骤大小，全部都用分号分隔。
Slicing works by stating the starting index, the ending index, and an optional step size, all separated by semicolons.
分段的工作方式是声明开始索引、结束索引和一个可选的步骤大小，全部都用分号分隔。
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