委托->匿名方法->Lambda表达式

1.委托：

static void Main()
{
string[] names = { "Rodney", "Jack", "Jill" };
string match = Array.Find (names, ContainsA);
Console.WriteLine (match); // Jack
}

static bool ContainsA (string name) {return name.Contains ("a"); }

2.匿名方法：

string[] names = { "Rodney", "Jack", "Jill" };
string match = Array.Find (names, delegate (string name){ return name.Contains ("a"); } );

3.Lambda表达式：

string[] names = { "Rodney", "Jack", "Jill" };
string match = Array.Find (names, n => n.Contains ("a")); // Jack