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the-way-to-go_ZH_CN/eBook/18.6.md
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18.6 函数

如何使用内建函数recover停止panic过程（参考13.3小节）：

func protect(g func()) {
    defer func() {
        log.Println("done")
        // Println executes normally even if there is a panic
        if x := recover(); x != nil {
            log.Printf("run time panic: %v", x)
        }
    }()
    log.Println("start")
    g()
}

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