To better understand the algorithm, you might to compare this transition diagram with a stack.

为了更好地理解该算法，可以将该转换图与堆栈相比较。

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Code access security is a stack-based algorithm.

代码访问安全是一个基于堆栈的算法。

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Code access security is a stack-based algorithm.

代码访问安全是一个基于堆栈的算法。

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