5、record struct,readonly record struct,record class都实现了System.IEquatable<T>接口,而且重写了Object.Equals(Object)方法(本质上是通过System.IEquatable<T>接口来实现),但是record class中实现的Equals方法除了比较属性以外,还会比较记录的类型是否一致(即比较EqualityContract属性,这一点可以参考上面介绍的引用类型...
他有着引用类型的支持大对象、继承、多态等特性,也有着结构的基于值相等的特性。可以说有着class和struct两者的优势,在一些情况下可以用以替代class和struct。 提到不可变的类型,我们会想到readonly struct,那么为什么要选择添加一个新的类型,而不是用readonly struct呢?这是因为记录有着如下优点: 在构造不可变的数据...
public readonly record struct ReadOnlyRecord { public int Value { get; init; } public ReadOnlyRecord(int value) { Value = value; } } 在这个例子中,ReadOnlyRecord 是一个只读的记录结构,它有一个名为 Value 的只读字段。构造函数 ReadOnlyRecord(int value) 用于初始化 Value 字段。由于它是只读的...
The synthesized members in a positional record class don't modify the state of the record. The goal is that you can more easily create immutable records. Remember that you declare areadonly record structto create an immutable record struct. Look again at the preceding declarations forHeatingDegre...
不可变性:record 类型是不可变的,这意味着在创建 record 对象之后,无法更改其属性值。而 class 和 struct 对象的属性值在创建后可以更改(除非显式标记为只读)。 引用类型 vs 值类型:class 是引用类型,这意味着当您将一个 class 对象赋值给另一个变量时,实际上是复制引用,而不是对象本身。因此,修改其中一个变...
publicreadonlyrecordstructPersonRecordStructReadOnly(stringName,DateTimeBirthdayDate,intYearsOld,string[]PhoneNumbers); Let’s finish up with a brief overview of the differences. Overview of Differences Between Record Struct and Record Class in C# ...
//使用record class声明为引用类型记录,class关键字是可选的,当缺省时等价于C#9.0中的record用法publicrecordAnimal;//等价于publicrecordclassAnimal;//使用record struct声明为结构体类型记录publicrecordstructAnimal;//也可使用readonly record struct声明为只读结构体类型记录publicreadonlyrecordstructAnimal; ...
SynchronizedReadOnlyCollection.System.Collections.Generic.IList<T>.Insert Method (System.Collections.Generic) ServiceModelExtensionCollectionElement.System.Collections.Generic.ICollection<TServiceModelExtensionElement>.IsReadOnly Property (System.ServiceModel.Configuration) IStreamAsync PROPID_M_DEST_FORMAT_NAME Macros...
A note is a brief written reminder or observation, often informal, while a record is a comprehensive documentation of facts or events, typically formal and preserved for future reference.
{ measure = true; } } struct timespec before; bool beforeIsValid = false; audio_track_cblk_t* cblk = mCblk; bool ignoreInitialPendingInterrupt = true; // check for shared memory corruption if (mIsShutdown) { status = NO_INIT; goto end; } for (;;) { int32_t flags = android_...