物体。用例子在 C# 中克隆方法
原文:https://www . geeksforgeeks . org/object-memberwiseclone-method-in-c-sharp-with-examples/
对象。MemberwiseClone 方法用于创建当前对象的浅拷贝或进行克隆。浅拷贝是对象的逐位拷贝。在这种情况下，会创建一个新对象，并且该对象具有现有对象的精确副本。基本上，此方法将当前对象的非静态字段复制到新对象。
- If the field is of reference type, only the reference, not the referenced object, is copied. So here, the cloned object and the original object will refer to the same object.
- If the field is a value type, a bit-by-bit copy of the field will be performed.
语法:
protected object MemberwiseClone ();
返回:此方法返回一个对象，它是现有对象的浅拷贝。
例 1:
// C# program to clone a object
// using MemberwiseClone() method
using System;
class GFG1 {
public int val;
public GFG1(int val)
{
this.val = val;
}
}
class GFG2 {
public GFG1 gg;
public GFG2(int val)
{
// copy the reference of GFG1 to gg
this.gg = new GFG1(val);
}
// method for cloning
public GFG2 Clone()
{
// return cloned value using
// MemberwiseClone() method
return ((GFG2)MemberwiseClone());
}
}
// Driver Code
class Geek {
// Main Method
public static void Main()
{
// object of Class GFG2 with a value 3
GFG2 g = new GFG2(3);
// calling Clone()
// "cc" has the reference of Clone()
GFG2 cc = g.Clone();
// accessing the main value
Console.WriteLine("Value: " + g.gg.val);
// accessing the cloned value
Console.WriteLine("cloned value: " + cc.gg.val);
// set a new value
// in variable "val"
cc.gg.val = 6;
// accessing the main value
Console.WriteLine("\nValue: " + g.gg.val);
// accessing the cloned value
Console.WriteLine("cloned value: " + cc.gg.val);
}
}
输出:
Value: 3
cloned value: 3
Value: 6
cloned value: 6
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