A destructor does not have return type and not even void.构造函数的概念可以应用于大多数面向对象的编程语言。
The concept of a constructor can be applied to most object-oriented programming languages.
Constructor functions technically are regular functions..
That can be done using constructor functions and the"new" operator.Combinations with other parts of speech
A constructor does not have a return type, not even void.
The destructor has no return type.
We can use constructor functions to make multiple similar objects.创建一个构造函数使用3种方法创建对象的Calculator:.
Create a constructor function Calculator that creates objects with 3 methods.
You can use constructor functions to create a new object.
CF is a constructor(and also an object).
Destructor does not have any return type, not even void.JavaScript并没有类,但有new调用的构造函数:.
JavaScript doesn't have classes but has constructor functions invoked with new.
We call it composition of functions.
But you can also use the String function as a constructor function.
Note that even data structures can benefit from auxiliary functions,such as constructors.当一个域、方法、属性、事件、操作符或构造函数声明包含静态修饰符,它就声明了一个静态成员。
When a field, method, property, event, operator, or constructor declaration includes a static modifier, it declares a static member.Js8版本之前,使用newBuffer(Number)构造函数分配的缓冲区并未使用ZEROS初始化内存空间。
Js version 8,Buffers allocated using the new Buffer(Number) constructor did not initialise the memory space with zeros.
A destructor is a class function that begins with double underscore(_).静态构造函数在为非托管代码创建包装类时也很有用,此时该构造函数可以调用LoadLibrary方法。
Static constructors are also useful when creating wrapper classes for unmanaged code, when the constructor can call the LoadLibrary method.在实例方法或构造函数中,this是对当前对象的引用--即其方法或构造函数被调用的对象。
Within an instance method or a constructor, this is a reference to the current object- the object whose method or constructor is being called.请记住,实例方法和构造函数的局部变量表的第一位是this引用。
(Remember, the first entry of the localvariable table for instance methods and constructors is the this reference.).如果某个类具有私有构造函数,那么您无法从该类外部创建该类的对象。
If a class has private constructor then you cannot create the object of that class from outside of the class.本节介绍了C支持的其他类型的函数成员:构造函数、属性、索引器、事件、运算符和析构函数。
This section describes the otherkinds of function members supported by C: constructors, properties, indexers, events, operators, and finalizers.Prototype属性表示Array构造函数的原型,并允许您向所有Array对象添加新的属性和方法。
Prototype property represents the prototype for the Array constructor and allows you to add new properties and methods to all Array objects.建立构造函数的另一种(错误的)方法是通过赋值,如:Fred::Fred(){x_=whatever;}。
The other(inefficient) way to build constructors is via assignment, such as: Fred::Fred(){ x_= whatever;}.它(将)不用于方法形式、构造函数形式、方法返回类型、字段、捕获形式,或任何其他类型的变量声明。
It would not be available for method formals, constructor formals, method return types, fields, catch formals, or any other kind of variable declaration.如果隐式类型转换很明显是有用的,并且某些构造函数满足上面的「安全」标准,那么可以考虑添加convert方法。
If it becomes clear thatimplicit conversion would be useful, and that some constructors meet the above"safety" criteria, then convert methods can be added.Sync()构造函数立即执行其函数参数(除非该函数返回Future)在微任务中完成,类似于2。
Sync() constructor executes its function argument immediately and(unless that function returns a Future) completes in a microtask, similar to 2.静态工厂方法的第三个优点是,与构造函数不同,它们可以返回其返回类型的任何子类型的对象。
A third advantage of static factory methods is that, unlike constructors, they can return an object of any subtype of their return type.