方法1:使用ParameterizedThreadStart委托
如果使用了ParameterizedThreadStart委托,线程能传递且只能传递一个object类型的参数,且返回类型为void.
static void Main(string[] args)
{
string hello = "hello world";
Thread thread = new Thread(new ParameterizedThreadStart(ThreadMainWithParameters));
//Thread thread = new Thread(ThreadMainWithParameters); // 上面的简写
thread.Start(hello);
Console.Read();
}
static void ThreadMainWithParameters(object obj)
{
string str = obj as string;
if (!string.IsNullOrEmpty(str))
Console.WriteLine("Running in a thread,received: {0}", str);
}
方法2:创建自定义类
定义一个类,在其中定义需要的字段,将线程的方法定义为类的一个实例方法.
这种方法稍有繁琐,如果又需要,可以使用
static void Main(string[] args)
{
CustomClass customClass = new CustomClass("hello world");
Thread thread = new Thread(customClass.RunMethod);
thread.Start();
Console.Read();
}
public class CustomClass
{
private string data;
public CustomClass(string data)
{
this.data = data;
}
public void RunMethod()
{
Console.WriteLine("Type2: Running in a thread,data: {0}", data);
}
}
方法3:使用lambda表达式
对于lambda表达式可以查看微软MSDN上的说明文档。
在多数使用委托的时候,我们一般也可以用lambda表达式,此方法简便推荐使用。
static void Main(string[] args)
{
string hello = "hello world";
//Thread thread = new Thread(ThreadMainWithParameters(hello)) // 该形式编译报错
Thread thread = new Thread(() => ThreadMainWithParameters(hello));
thread.Start();
Console.Read();
}
static void ThreadMainWithParameters(object obj)
{
string str = obj as string;
if (!string.IsNullOrEmpty(str))
Console.WriteLine("Type3: Running in a thread,received: {0}", str);
}
方法4:使用delegate委托
static void Main(string[] args)
{
string hello = "hello world";
Thread thread = new Thread(delegate() { ThreadMainWithParameters(hello); });
thread.Start();
Console.Read();
}
static void ThreadMainWithParameters(object obj)
{
string str = obj as string;
if (!string.IsNullOrEmpty(str))
Console.WriteLine("Type4: Running in a thread,received: {0}", str);
}