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Merge pull request #78 from caimaoy/patch-2

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Update ch5-09.md
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Xargin 2019-12-24 19:13:08 +08:00 committed by GitHub
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@ -96,8 +96,9 @@ src/gopl.io/ch5/defer1/defer.go:10
为了方便诊断问题，runtime包允许程序员输出堆栈信息。在下面的例子中，我们通过在main函数中延迟调用printStack输出堆栈信息。
<u><i>gopl.io/ch5/defer2</i></u>
```Go
gopl.io/ch5/defer2
func main() {
defer printStack()
f(3)