编写高质量代码改善C#程序的157个建议——建议86：Parallel中的异常处理

static void Main(string[] args)  
{  
    try  
    {  
        var parallelExceptions = new ConcurrentQueue<Exception>();  
        Parallel.For(0, 1, (i) =>
        {  
            try  
            {  
                throw new InvalidOperationException("并行任务中出现的异常");  
            }  
            catch (Exception e)  
            {  
                parallelExceptions.Enqueue(e);  
            }  
            if (parallelExceptions.Count > 0)  
                throw new AggregateException(parallelExceptions);  
        });  
    }  
    catch (AggregateException err)  
    {  
        foreach (Exception item in err.InnerExceptions)  
        {  
            Console.WriteLine("异常类型：{0}{1}来自：  
                {2}{3}异常内容：{4}", item.InnerException.GetType(),  
                Environment.NewLine, item.InnerException.Source,  
                Environment.NewLine, item.InnerException.Message);  
        }  
    }  
    Console.WriteLine("主线程马上结束");  
    Console.ReadKey();  
}