[MethodImpl(MethodImplOptions.Synchronized)] 是 C# 中用于指定方法同步的一个特性，它控制方法的执行方式，确保在多线程环境下某个方法的执行是线程安全的。它可以用来避免多个线程同时访问一个共享资源而导致的竞态条件。
private static int count = 0;//[MethodImpl(MethodImplOptions.Synchronized)]
public static void Increment()
{Thread.Sleep(100); // 模拟一些处理int temp = count;count = temp + 1;Console.WriteLine($"Current value:{count}");}
static void Main(string[] args)
{Thread t1 = new Thread(Increment);Thread t2 = new Thread(Increment);Thread t3 = new Thread(Increment);Thread t4 = new Thread(Increment);t1.Start();t2.Start();t3.Start();t4.Start();t1.Join();t2.Join();t3.Join();t4.Join();Console.WriteLine("Done!");
加上这个特性后
private static int count = 0;[MethodImpl(MethodImplOptions.Synchronized)]
public static void Increment()
{Thread.Sleep(100); // 模拟一些处理int temp = count;count = temp + 1;Console.WriteLine($"Current value:{count}");}
static void Main(string[] args)
{Thread t1 = new Thread(Increment);Thread t2 = new Thread(Increment);Thread t3 = new Thread(Increment);Thread t4 = new Thread(Increment);t1.Start();t2.Start();t3.Start();t4.Start();t1.Join();t2.Join();t3.Join();t4.Join();
