In such a case, there is no constructor call, which makes the allocation more efficient.

在此情况下不存在构造函数调用，因而可以提高分配效率。

youdao

In such a case, there is no constructor call, which makes the allocation more efficient.

在此情况下不存在构造函数调用，因而可以提高分配效率。

youdao