2019獨角獸企業重金招聘Python工程師標準>>>

lvalue ：An object is a region of storage that can be examined and stored into.An lvalue does not necessarily permit modification of the object it designates： eg

An array type

An incomplete type

A const-qualified type

An object is a structure or union type and one of its members has a const-qualified type

rvalue:

The term rvalue refers to a data value that is stored at some address in memory. An rvalue is an expression that cannot have a value assigned to it.

lvalue 更代表的一個區域，雖然你不一定可以更改這個區域的內容，但你更清楚在語言層面更代表一個區域。

rvalue 更代表一個值，你更清楚在語言層面更代表一個數值

轉載于:https://my.oschina.net/invictuslee/blog/223070

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