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item28: update item28

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fix translate error
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jason_wang 2021-09-26 06:43:11 +00:00 committed by Yi Yang
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5.RRefMovSemPerfForw/item28.md
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@ -9,7 +9,7 @@ template<typename T>
void func(T&& param); void func(T&& param);
``` ```
被推导的模板形参`T`将根据被传给`param`的实参被编码为左值或者右值。 被推导的模板形参`T`将根据被传给`param`的实参为左值还是右值而被编码.
编码机制是简单的。当左值实参被传入时，`T`被推导为左值引用。当右值被传入时，`T`被推导为非引用。（请注意不对称性：左值被编码为左值引用，右值被编码为**非引用**。）因此： 编码机制是简单的。当左值实参被传入时，`T`被推导为左值引用。当右值被传入时，`T`被推导为非引用。（请注意不对称性：左值被编码为左值引用，右值被编码为**非引用**。）因此：