C # func usage and lambda expressions

The limbda expression is referenced in C #3.0. The limbda expression is actually a method, but this method is an anonymous method (that is, a method without a name)

CodeFragment: func <int, String, string> T = (int x, string B) => (X. tostring () + B); equal

Private string deletegate teststring (INT x string B); // defines a delegate. The returned value is of the string type.

Private string test (INT x string B)

{

Return X. tostring () + B;

}

Teststring T = new teststring (test );

T (44, "BBB ");

Func <int, String, string> is to define a delegate = private string deletegate teststring (INT x string B), the first two parameters are the parameter type of the corresponding method, the last one is the return type of the method.