This is because a composite value type, such as a user-defined structure, has no valid default value.

这是因为复合实值型别(例如使用者定义的结构)没有任何有效的预设值。

youdao

A second kind of operator is one that ACTS on component data elements instead of on the entire composite value.

第二种操作符是针对组成数据元素而非整个复合值的一种操作。

youdao

A second kind of operator is one that ACTS on component data elements instead of on the entire composite value.

第二种操作符是针对组成数据元素而非整个复合值的一种操作。

youdao