详解C# parallel中并行计算的四种写法总结_C#教程

            for (int i=0;i<12;i++)
            {
                textBox1.Text = textBox1.Text + $"循环数：{i}" + Environment.NewLine;
            }

            Parallel.For(0, 12, i =>
            {
                textBox2.BeginInvoke(() =>
                {
                    textBox2.Text = textBox2.Text + $"循环数：{i}" + Environment.NewLine;
                });
            });

            int[] x = new int[] { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11 };
            Parallel.ForEach(x, i =>
            {
                textBox3.BeginInvoke(() =>
                {
                    textBox3.Text = textBox3.Text + $"循环数：{i}" + Environment.NewLine;
                });
            });

            Parallel.Invoke(
            new Action(() =>
            {
                for (int i = 0; i < 4; i++)
                {
                    textBox4.BeginInvoke(() =>
                    {
                        textBox4.Text = textBox4.Text + $"循环数：{i},1-4" + Environment.NewLine;
                    });
                }
            }),
            new Action(() =>
            {
                for (int i = 4; i < 8; i++)
                {
                    textBox4.BeginInvoke(() =>
                    {
                        textBox4.Text = textBox4.Text + $"循环数：{i},4-8" + Environment.NewLine;
                    });
                }
 
            }),
            new Action(() =>
            {
                for (int i = 8; i < 12; i++)
                {
                    textBox4.BeginInvoke(() =>
                    {
                        textBox4.Text = textBox4.Text + $"循环数：{i},8-11" + Environment.NewLine;
                    });
                }
            }));

        private void func1()
        {
            for (int i = 0; i < 4; i++)
            {
                textBox4.BeginInvoke(() =>
                {
                    textBox4.Text = textBox4.Text + $"循环数：{i}，0-3" + Environment.NewLine;
                });
            }
        }
 
        private void func2()
        {
            for (int i = 4; i < 8; i++)
            {
                textBox4.BeginInvoke(() =>
                {
                    textBox4.Text = textBox4.Text + $"循环数：{i}，4-7" + Environment.NewLine;
                });
            }
        }
 
        private void func3()
        {
            for (int i = 8; i < 12; i++)
            {
                textBox4.BeginInvoke(() =>
                {
                    textBox4.Text = textBox4.Text + $"循环数：{i}，8-11" + Environment.NewLine;
                });
            }
        }

            int[] x = new int[] { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11 };
            await Parallel.ForEachAsync(x,new ParallelOptions() { MaxDegreeOfParallelism=3},async (x,_) =>
            {
                textBox4.BeginInvoke(async () =>
                {
                   textBox4.Text = textBox4.Text + $"循环数：{x}" + Environment.NewLine;
                });
            }
            );