using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading;
using System.Threading.Tasks;
namespace ConsoleApplication1
{
public delegate int GetSum(
object index);
class Program
{
static void Main(
string[] args)
{
/*
Task task = new Task(new Action(Test));
task.Start();
Console.Read();
*/
//最初的正确方法
//Task<int> task = new Task<int>(n=>Sum((Int32)n), 100);
//正确的定义方法一
Task<
int> task =
new Task<
int>(
new Func<
object,
int>(Sum),
10);
//错误的定义方法二
//Task<int> task1 = new Task<int>(new Func<in object,out int>(Sum), 20);
//方法三错误
GetSum getSum =
new GetSum(Sum);
Task<
int> task1 =
new Task<
int>((Func<
object,
int>)getSum,
20);
Console.WriteLine("Current Status:"+
task.Status);
task.Start();
Console.WriteLine("Current Status:" +
task.Status);
Console.WriteLine(task.Result);
Thread.Sleep(60);
Console.WriteLine("Current Status:" +
task.Status);
Console.Read();
}
private static void Test() {
Console.WriteLine("Hello,World!");
}
//正确的方法一
private static int Sum(
object input)
{
int result =
0;
for (
int i =
0; i < (
int)input;i++
)
{
checked
{
result +=
i;
}
//result=checked(result+i);
}
return result;
}
//正确的方法二
private static int SumSecond(
int input)
{
int result =
0;
for (
int i =
0; i < (
int)input; i++
)
{
checked
{
result +=
i;
}
//result=checked(result+i);
}
return result;
}
}
}
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading;
using System.Threading.Tasks;
namespace ConsoleApplication1
{
public delegate int GetSum(
object index);
class Program
{
static void Main(
string[] args)
{
/*
Task task = new Task(new Action(Test));
task.Start();
Console.Read();
*/
//最初的正确方法
//Task<int> task = new Task<int>(n=>Sum((Int32)n), 100); //注意这里的（Int32）强制转换
//正确的定义方法一
Task<int> task = new Task<int>(new Func<object,int>(Sum),10);
//错误的定义方法二
//Task<int> task1 = new Task<int>(new Func<in object,out int>(Sum), 20);
//方法三错误
//GetSum getSum = new GetSum(Sum);
//Task<int> task1 = new Task<int>((Func<object, int>)getSum, 20);
//方法四
Task<int> taskForth = new Task<int>(delegate(object input) { return 100; }, 30);
Console.WriteLine("Current Status:"+
task.Status);
task.Start();
Console.WriteLine("Current Status:" +
task.Status);
Console.WriteLine(task.Result);
Thread.Sleep(60);
Console.WriteLine("Current Status:" +
task.Status);
taskForth.Start();
Console.WriteLine(taskForth.Result);
Console.Read();
}
private static void Test() {
Console.WriteLine("Hello,World!");
}
//正确的方法一
private static int Sum(
object input)
{
int result =
0;
for (
int i =
0; i < (
int)input;i++
)
{
checked
{
result +=
i;
}
//result=checked(result+i);
}
return result;
}
//正确的方法二
private static int SumSecond(
int input)
{
int result =
0;
for (
int i =
0; i < (
int)input; i++
)
{
checked
{
result +=
i;
}
//result=checked(result+i);
}
return result;
}
}
}
转载于:https://www.cnblogs.com/hongjiumu/archive/2012/10/03/2710832.html
