modified: eBook/18.2.md

modified:   eBook/18.3.md
	modified:   eBook/18.4.md
	modified:   eBook/directory.md
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songleo
2016-01-03 22:23:20 +08:00
parent 63367af386
commit 84b4cd2a7b
4 changed files with 3 additions and 13 deletions

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@@ -12,7 +12,7 @@ for key, value := range map1 {
}
```
2如何在一个映射中检测键key1是否存在
2如何在一个映射中检测键`key1`是否存在:
`val1, isPresent = map1[key1]`