并行计算并在控制台打印进度

using System;
using System.Diagnostics;
using System.Threading;
using System.Threading.Tasks;

namespace CheckMortonCode.Tests
{
    class TestTask
    {
        private static object printLockObj = new object();
        private static int num = 0;
        private static int top = 0;
        private static void RunOneTask()
        {
            Thread.Sleep(1000);
        }

        public static void PrintProgress(int i, int cnt)
        {
            lock (printLockObj)
            {
                num++;
                top = Console.CursorTop;
                Console.WriteLine($"{num} / {cnt}: {i}");
                Console.SetCursorPosition(0, top);
            }
        }

        public static void RunAllTask()
        {
            var sw = new Stopwatch();
            sw.Start();
            Parallel.For(0, 100, i =>
            {
                RunOneTask();
                PrintProgress(i, 100);
            }
            );
            sw.Stop();
            var second = sw.ElapsedMilliseconds / 1000;
            Console.WriteLine($"\n用时：{second}s");
            Console.ReadLine();
        }
    }
}