初始化和归零之间的区别,以及GoLang中的new()和make()

make()new()

init()

无论如何,他们之间有什么区别？

更新

我回答了我自己的问题,请检查一下,看看我的答案.

1> Tarik..：

---

我想我已经想到并决定分享我到目前为止的想法.

make()new()

make()new()

newnewint0structnil""string

mapslicechannelListArrayListnewnilnullmake()slices

new()nilnil

new()

public class Person{
   public string Name;
   public int Age;
   public Address HomeAddress;
}

var person = new Person();
Console.WriteLine(person.Name); // ""
Console.WriteLine(person.Age); // 0
Console.WriteLine(person.HomeAddress); // null

make()slicemapchannel

public class PersonList{
   // We are initializing the array so that we can use it.
   // Its capacity can increase.
   private Person[] _persOnList= new Person[100];
   public void Add(Person p){}
   public void Remove(Person p){}
   public Person Get(int index){}
}

初始化与归零

0nil""falsehello := Hello{name="world"}var hello = new Hello() {Name = "World"}Hellonameworld

new List()make)

(http://referencesource.microsoft.com/#mscorlib/system/collections/generic/list.cs,cf7f4095e4de7646):

newmake()

2> OneOfOne..：

---

new

intPtr := new(int)
// or
var i int
intPtr := &i

make

无论您如何创建变量,所有变量都会在创建时归零.

关于make的规范:https://golang.org/ref/spec#Making_slices_maps_and_channels

关于零值的规范:https://golang.org/ref/spec#The_zero_value