Block syntax---blocks

block blocks syntax. --- anonymous functions

Blocks can define anonymous functions inside a function.

BlocK- implements the maximum value of two numbers.

Function:

#import<Foundation/Foundation.h>#import "Person.h"//1. Output I love iOSvoidoutput () {printf ("I Love ios\n");}//2. Find the maximum of two numbers intMaxValue (intXinty) {returnx > y?x:y;}intMainintargcConst Char*argv[]) {@autoreleasepool {//method One: Direct printingoutput (); intmax = MaxValue (2,5); printf ("max =%d", Max); //method Two: Define pointer variables        void(*p) () =NULL; P= output;//the pointer points to the corresponding function;p (); int(*p) (int,int) =NULL; P=MaxValue; intmax = P (2,5); printf ("max =%d", Max); //method Three: function renaming (printing more than one type, it is more convenient)typedefint(*pfun) (int,int);//Rename the function type to PfunPfun P1 =NULL; P1=MaxValue; intmax = P1 (2,5); printf ("max =%d", Max);

   Fourth Method- --Block  int  (^max) (int , int ) = ^int  (int  A, int   b) { return  a > B? 
    
      A:B;        }; 
     //  How to call block block  int  value = max (4 , 6  ); printf (  value =%d  , value);  

Block syntax----blocks

Block syntax---blocks