ch5-05 done

This commit is contained in:
D 2016-01-06 19:36:53 +08:00
parent 8a37694fae
commit 9711b0d64e

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@ -122,6 +122,6 @@ $ ./outline2 http://gopl.io
練習 **5.9** :編寫函數 expand,將s中的"foo"替換爲f("foo")的返迴值。
```go
```Go
func expand(s string, f func(string) string) string
```