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Update 11.9.md (#654)

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marjune
2019-07-11 12:12:24 +08:00
committed by ᴊ. ᴄʜᴇɴ
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@@ -156,7 +156,7 @@ var interfaceSlice []interface{} = dataSlice
可惜不能这么做，编译时会出错：`cannot use dataSlice (type []myType) as type []interface { } in assignment`。 可惜不能这么做，编译时会出错：`cannot use dataSlice (type []myType) as type []interface { } in assignment`。
原因是它们俩在内存中的布局是不一样的（参考 [官方说明](http://golang.org/doc/go_spec.html)）。 原因是它们俩在内存中的布局是不一样的（参考 [Go wiki](https://github.com/golang/go/wiki/InterfaceSlice)）。
必须使用 `for-range` 语句来一个一个显式地复制： 必须使用 `for-range` 语句来一个一个显式地复制：