勇哥注：
不可变对象集合类由于其特性，天生就是线程安全的，多线程同时读写都没得问题。
它一共有下面这些：
ImmutableArray<T>
ImmutableStack<T>
ImmutableQueue<T>
ImmutableList<T>
ImmutableHashSet<T>
ImmutableSortedSet<T>
ImmutableDictionary<K, V>
ImmutableSortedDictionary<K, V>
但是这种集合在频繁修改的时候开销就比较大。
下面勇哥写一个示例程序：
using System;
using System.Collections.Generic;
using System.Collections.Immutable;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading;
using System.Threading.Tasks;
using System.Windows.Forms;
namespace WindowsFormsApplication1
{
public partial class Form1 : Form
{
ImmutableList<int> list1= ImmutableList.Create<int>();
public Form1()
{
InitializeComponent();
}
private void button1_Click(object sender, EventArgs e)
{
Task.Factory.StartNew(() =>
{
while (true)
{
Random ran = new Random();
var list2 = list1.ToBuilder();
list2.Add(ran.Next(0,1000));
list1 = list2.ToImmutable();
Thread.Sleep(1300);
}
});
}
private void button2_Click(object sender, EventArgs e)
{
Task.Factory.StartNew(() =>
{
while (true)
{
Random ran = new Random();
var list2 = list1.ToBuilder();
list2.Add(ran.Next(0,1000));
list1 = list2.ToImmutable();
Thread.Sleep(1800);
}
});
}
private void button3_Click(object sender, EventArgs e)
{
timer1.Enabled = true;
timer1.Start();
}
private void timer1_Tick(object sender, EventArgs e)
{
var sb1 = new StringBuilder();
for(int i=0;i<list1.Count;i++)
{
sb1.Append(list1[i] + ",");
}
RtbMsg.Text = sb1.ToString();
}
private void button4_Click(object sender, EventArgs e)
{
list1=list1.RemoveAt(0);
}
}
}另一有篇介绍不可变对象集合见下面文章：
https://www.skcircle.com/?id=1996
另外，此集合不是.net Framework自带的，你得去Nuget去下载，下载关键字如下：
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作者：hackpig
来源：www.skcircle.com
版权声明：本文为博主原创文章，转载请附上博文链接！