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  • c# Beginlnvoke 委托

    using System;
    using System.Collections.Generic;
    using System.ComponentModel;
    using System.Data;
    using System.Drawing;
    using System.Linq;
    using System.Text;
    using System.Windows.Forms;
    
    namespace WindowsFormsApplication1
    {
        public partial class Form1 : Form
        {
    
            public delegate void deletask(int num1, int num2);
            public Form1()
            {
                InitializeComponent();
            }
    
            private void button1_Click(object sender, EventArgs e)
            {
                deletask task = new deletask(test);
                int num30 = int.Parse(this.textBox1.Text);
                int num40 = int.Parse(this.textBox2.Text);
                task.BeginInvoke(num30, num40, null, null);
            }
    
            private void test(int num1, int num2) 
            {
                int sum = 0;
                for (int i = num1; i <= num2; i++) 
                {
                    sum += num1;
                    num1++;
                }
                this.label1.Text = sum.ToString();
            }
    
            private void Form1_Load(object sender, EventArgs e)
            {
                Control.CheckForIllegalCrossThreadCalls = false;
            }
        }
    }
    

      

    c# 委托线程返回值
    
    using System;
    using System.Collections.Generic;
    using System.ComponentModel;
    using System.Data;
    using System.Drawing;
    using System.Linq;
    using System.Text;
    using System.Windows.Forms;
    
    namespace WindowsFormsApplication1
    {
        public partial class Form1 : Form
        {
    
            public delegate int deletask(int num1, int num2);
            public Form1()
            {
                InitializeComponent();
            }
    
            private void button1_Click(object sender, EventArgs e)
            {
                deletask task = test;
                int num3 = int.Parse(this.textBox1.Text);
                int num4 = int.Parse(this.textBox2.Text);
                //task.BeginInvoke(num3, num4, null, null);
                IAsyncResult res = task.BeginInvoke(num3, num4, null, null);
                int result = task.EndInvoke(res);
                this.label1.Text = result.ToString();
            }
    
            private int test(int num1, int num2) 
            {
                int sum = 0;
                for (int i = num1; i <= num2; i++)  
                {
                    sum += num1;
                    num1++;
                }
                return sum;
            }
    
            private void Form1_Load(object sender, EventArgs e)
            {
                Control.CheckForIllegalCrossThreadCalls = false;
            }
        }
    }
    

      

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  • 原文地址:https://www.cnblogs.com/mengluo/p/5583244.html
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