而类是引用类型，对象变量可在不同的时间引用各种类实例。

But classes are reference types, and an object variable can refer to various class instances at different times.

youdao

结构是值类型，而类是引用类型。

A struct is a value type, while a class is a reference type.

youdao

结构是值类型，而类是引用类型。

A struct is a value type, while a class is a reference type.

youdao