标签：blog class code color c int
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<br> //定义一个委托 public
delegate int DoSomething(int
count); //BeginInvoke 的回调函数 private
static void Execute(IAsyncResult async) { DoSomething temp = (DoSomething)async.AsyncState; int
sum = temp.EndInvoke(async); Console.WriteLine("线程结束：值为"
+ sum); } /// <summary> /// 判断输入的整数是不是素数 /// </summary> /// <param name="candidate">输入的整数</param> /// <returns>为素数返回true,否则返回false</returns> public
static bool IsPrime(int
candidate) { bool
retVal = true; //使用递增方式会更有效率， //但是在演示取消功能时，使用递减的数字会更好。 //for (int i = 2; i < candidate / 2; i++) for
(int
i = candidate / 2 + 1; i > 1; i--) { if
(candidate % i == 0) { retVal = false; break; } } return
retVal; } private
static int maseggs(int
count) { int
result = 0; for
(int
index = 0; index < count; index++) { if
(IsPrime(index + 1)) { result++; } } return
result; } static
void Main(string[] args) { DoSomething hidands = new
DoSomething(maseggs); IAsyncResult async = hidands.BeginInvoke(100000, new
AsyncCallback(Execute), hidands); //这里还有100行代码 Console.WriteLine("消息获取成功"); Console.ReadLine(); } |
.net IAsyncResult 异步操作,布布扣,bubuko.com
标签：blog class code color c int
原文地址：http://www.cnblogs.com/dragon-L/p/3719049.html
