异步

//1.异步调用
//带参
Action<object> action=(obj)=>method(obj);
action.BeginInvoke(obj,ar=>action.EndInvoke(ar),null);
//不带参
Action action=()=>method();
action.BeginInvoke(ar=>action.EndInvoke(ar),null);

//2.异步调用
public class AsyncThread
    {
        /// <summary>
        /// 异步执行
        /// </summary>
        /// <param name="method"></param>
        public static void Run(AsynsProp.ProcessTask method)
        {
            AsynsProp at = new AsynsProp();
            at.Start(method);
        }
    }
    public class AsynsProp
    {
        public delegate void ProcessTask();
        /// <summary>
        /// 使用委托做参数执行外面的代码
        /// </summary>
        /// <param name="processTask"></param>
        public void Start(ProcessTask processTask)
        {
            if (processTask != null)
            {
                processTask.BeginInvoke(new AsyncCallback(End), processTask);
            }
        }
        /// <summary>
        /// Ends the long running process.
        /// </summary>
        /// <param name="result">The result.</param>
        public void End(IAsyncResult result)
        {
            ProcessTask processTask = (ProcessTask)result.AsyncState;
            processTask.EndInvoke(result);
        }
    }