//delegate 返回值类型 委托名(参数列表);
public delegate void ActionHandler();
class Demo0713 {
public delegate string Action5();
public delegate string Action3(int j);
public delegate void Action4(int j,int i);
public void Test() {
// Test2();//调用方法执行里面代码
ActionHandler a = delegate() {
Console.WriteLine("我是一个匿名函数");
};
a();
Action3 act = delegate(int j)
{
Console.WriteLine("我是一个匿名函数");
return "a";
};
string name=act(12);
act = Test2;
}
public static void Main() {
Action3 act = delegate(int j)
{
return "a";
};
//当方法体代码只有一行时,可以省略{},甚至省略return;s
Action3 act2 = j =>"a";
string str = act2(12);
Console.WriteLine(str);
Action3 act1 = delegate(int j)
{
j = j + 2;
return j + "-" + j;
};
//当方法体代码超过一行不可以省略{};
Action3 act3 = j => { j = j + 2; return j + "-" + j; };
Action4 act4 = delegate(int i, int j)
{
};
//当超过两个参数时,不可以省略();
Action4 act5=(i,j)=>Console.WriteLine(123);
Action5 act6 = () => "a";
ActionHandler a=()=>Console.WriteLine(12);
}
public string Test2(int i) {
return "abc";
}
public static void Test3() {
}
public delegate void ActionHandler();
class Demo0713 {
public delegate string Action5();
public delegate string Action3(int j);
public delegate void Action4(int j,int i);
public void Test() {
// Test2();//调用方法执行里面代码
ActionHandler a = delegate() {
Console.WriteLine("我是一个匿名函数");
};
a();
Action3 act = delegate(int j)
{
Console.WriteLine("我是一个匿名函数");
return "a";
};
string name=act(12);
act = Test2;
}
public static void Main() {
Action3 act = delegate(int j)
{
return "a";
};
//当方法体代码只有一行时,可以省略{},甚至省略return;s
Action3 act2 = j =>"a";
string str = act2(12);
Console.WriteLine(str);
Action3 act1 = delegate(int j)
{
j = j + 2;
return j + "-" + j;
};
//当方法体代码超过一行不可以省略{};
Action3 act3 = j => { j = j + 2; return j + "-" + j; };
Action4 act4 = delegate(int i, int j)
{
};
//当超过两个参数时,不可以省略();
Action4 act5=(i,j)=>Console.WriteLine(123);
Action5 act6 = () => "a";
ActionHandler a=()=>Console.WriteLine(12);
}
public string Test2(int i) {
return "abc";
}
public static void Test3() {
}