OC-点语法

点语法的本质：方法调用

#import <Foundation/Foundation.h>
#import "Person.h"

int main(int argc, const char * argv[])
{
    Person *p = [Person new];

    // 点语法的本质还是方法调用
    p.age = ; // [p setAge:10];

    int a = p.age; // [p age];

    p.name = @"Jack";

    NSString *s = p.name;

    NSLog(@"%@", s);

    return ;
}

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