If we ignore the fact that exceptions in Java are typed, all that’s actually happening here is that every time we enter a try block, the compiler records in memory the location of the instruction corresponding to the start of the catch block. As we keep calling more functions, some of them might have try blocks of their own, and those are added onto a stack—a shorter stack than the actual call stack, since not all functions have a try/catch. When an exception is thrown, instead of looking up the location the function is supposed to return to, we consult the stack to find the topmost catch block, and jump straight there. We’ve just done a return that has skipped over multiple functions all in one go.
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，这一点在爱思助手下载最新版本中也有详细论述
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声明表示，与会部长强调，欧盟及其成员国与海合会成员国在有关袭击发生前已开展广泛外交努力，海合会成员国承诺不会允许其领土被用于发动对伊朗的袭击。
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