C# 多线程调用控件

using System;
using System.Collections.Generic;
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 WindowsFormsApplication5
{
??? public partial class Form1 : Form
??? {
??????? public Form1()
??????? {
??????????? InitializeComponent();
??????? }

??????? private void button1_Click(object sender,EventArgs e)
??????? {
??????????? Thread th = new Thread(test);
??????????? th.IsBackground = true;
??????????? th.Start("hahaha");//在此传入要执行的方法的参数
??????? }

??????? void test(object obj)//多线程只能接受object参数类型的方法
??????? {
??????????? for (int i = 0; i < 10000000; i++ )
??????????? {
??????????????? if (button1.Invokerequired)
??????????????? {
??????????????????? button1.Invoke(new Action<string>(s => { button1.Text = s; }),obj);
??????????????? }
??????????????? else
??????????????? {
??????????????????? button1.Text = i.ToString();
??????????????? }

??????????????? //button1.Text = i.ToString();
??????????? }
??????? }
??? }
}

（编辑：北几岛）

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