本文共 2345 字，大约阅读时间需要 7 分钟。

多个task调度的实例，需要加锁lock

using System;using System.Collections.Generic;using System.Linq;using System.Text;using System.Threading.Tasks;namespace ConsoleAppTest{    class Program    {        static void Main(string[] args)        {            var account = new Account(1000);            var tasks = new Task[100];            for (int i = 0; i < tasks.Length; i++)            {                tasks[i] = Task.Run(() => Update(account));            }            Task t = Task.WhenAll(tasks);            try            {                t.Wait();            }            catch { }            if (t.Status == TaskStatus.RanToCompletion)                Console.WriteLine("All ping attempts succeeded.");            else if (t.Status == TaskStatus.Faulted)                Console.WriteLine("ping attempts failed");            Console.WriteLine($"Account's balance is {account.GetBalance()}");            Console.ReadKey();        }        static void Update(Account account)        {            decimal[] amounts = { 0, 2, -3, 6, -2, -1, 8, -5, 11, -6 };            foreach (var amount in amounts)            {                if (amount >= 0)                {                    account.Credit(amount);                }                else                {                    account.Debit(Math.Abs(amount));                }            }        }    }    }public class Account{    private readonly object balanceLock = new object();    private decimal balance;    public Account(decimal initialBalance) => balance = initialBalance;    public decimal Debit(decimal amount)    {        if (amount < 0)        {            throw new ArgumentOutOfRangeException(nameof(amount), "The debit amount cannot be negative.");        }        decimal appliedAmount = 0;        lock (balanceLock)        {            if (balance >= amount)            {                balance -= amount;                appliedAmount = amount;            }        }        return appliedAmount;    }    public void Credit(decimal amount)    {        if (amount < 0)        {            throw new ArgumentOutOfRangeException(nameof(amount), "The credit amount cannot be negative.");        }        lock (balanceLock)        {            balance += amount;        }    }    public decimal GetBalance()    {        lock (balanceLock)        {            return balance;        }    }}

参考：

转载地址：http://okiii.baihongyu.com/