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Update input_parameters.md #195

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2 changes: 1 addition & 1 deletion src/fn/closures/input_parameters.md
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Expand Up @@ -14,7 +14,7 @@

例如用一个类型说明为 `FnOnce` 的闭包作为参数。这说明闭包可能采取 `&T`，`&mut T` 或 `T` 中的一种捕获方式，但编译器最终是根据所捕获变量在闭包里的使用情况决定捕获方式。

这是因为如果能以移动的方式捕获变量，则闭包也有能力使用其他方式借用变量。注意反过来就不再成立：如果参数的类型说明是 `Fn`，那么不允许该闭包通过 `&mut T` 或 `T` 捕获变量。
这是因为如果能以移动的方式捕获变量，则闭包也有能力使用其他方式借用变量。注意反过来就不再成立：如果参数的类型说明是 `Fn`，那么不允许该闭包通过 `&mut T` 或 `&T` 捕获变量。

在下面的例子中，试着分别用一用 `Fn`、`FnMut` 和 `FnOnce`，看看会发生什么：

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