If there is a fencepost error (running off the end of an array), your program will immediately exit with a protection error.

如果存在 fencepost 错误（超过数组末尾运行），程序就会产生保护错误，并立即结束。

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People with zero experience are walking into rental centers and coming home with concrete saws, fencepost augers and backhoes.

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When I pulled into the driveway, though, I nearly drove into a fencepost.

NPR: Excerpt: 'Dog Days'