要想只获得针对每次运行的当前规则，选中表目标操作符属性中的Delete previous content复选框。

To only get current rules for each run, check the Delete previous content check box in the properties of the target table operator.

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如果你对STL不熟悉，去看看有关迭代器反引用操作符的内容，它返回当前指向的对象，上面代码段中，for循环里的代码等同于。

In case you're not up on your STL, recall that for iterators the dereference operator returns the current object, so the line inside the for loop in the preceding snippet is equivalent to.

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