In essence, an R-Value is an expression that cannot appear on the left-hand side of an assignment expression.

本质上来讲右值是一个不可能出现在等号左边的表达式。

youdao

In essence, an R-Value is an expression that cannot appear on the left-hand side of an assignment expression.

本质上来讲右值是一个不可能出现在等号左边的表达式。

youdao