We should distinguish the square bracket from two straight bars enclosing a determinant. 我们应将方括号(SB)与用以围住行列式的两条直线区别开。
Typing square bracket caret zero dash nine will exclude all numbers from matching. 输入方括号(SB)插入零九个破折号将排除所有号码匹配。
Using square bracket ( [ ] ) notation, you can specify a filter & in this case, the stylesheet filters for Mail items only. 使用方括号(SB)([])标记,您可以指定一个过滤器&在本例中,样式表只过滤Mail项目。
Most of the container types in Python, including the tuple, allow you to access items easily from the collection using the square bracket operators. Python中的多数容器类型(其中包括tuple)允许您使用方括号(SB)操作符从集合中方便地访问数据项。
As seen in the example, array sub-indexing is performed using the familiar square bracket syntax, and the sub-index of the first element is 1. 正如在此示例中所看到的,使用熟悉的方括号(SB)语法来执行阵列子索引,且第一个元素的子索引为1。