# 函数

如何使用内建函数 `recover()` 终止 `panic()` 过程（参考[章节 13.3](/di-san-bu-fen-go-gao-ji-bian-cheng/13.0/13.3.md)）：

```go
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()
}
```

## 链接

* [目录](https://github.com/MartialBE/the-way-to-go_ZH_CN/blob/master/eBook/directory.md)
* 上一节：[接口](/di-si-bu-fen-shi-ji-ying-yong/18.0/18.5.md)
* 下一节：[文件](/di-si-bu-fen-shi-ji-ying-yong/18.0/18.7.md)


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