引用类型

• Reference type indicating missing or nonexistent data
  指示缺失或不存在的数据的引用类型
• Is a reference type and , therefore , allocated on the heap
  是引用类型，所以在堆上分配。
• Reference types have the following conditional behavior
  引用类型具有下列有条件的行为：
• In fact , reference typing elements such as
  （事实上，引用类型化元素，如
• If the property is a reference type , the
  如果属性为引用类型，则可以使用
• Reference type pointing to a string of 16 - bit characters
  指向16位字符的字符串的引用类型
• All structures , even if their members are reference types
  所有结构，即使其成员是引用类型
• Structs are value types while classes are reference types
  结构是值类型，而类是引用类型。
• Reference types are also referred to as objects
  引用类型也称为对象。
• A reference type that defines a contract
  对协定进行定义的引用类型。