iOS中简单的KVC

#import <Foundation/Foundation.h>
#import "Person.h"
#import "Student.h"
int main(int argc, const char * argv[]) {
@autoreleasepool {
//创建Person对象
Person *p = [[Person alloc] init];
// Student *stu = [[Student alloc] init];
// p.stu = stu;
//        p.name = @"张三";
//        p.age = 17;
//        p.gender = @"男";
//setValue:forKey:此方法 value 后跟的参数需要是对象,key后面的参数,是字符串,给对应得属性进行赋值是,参数字符串要与属性名相同
[p setValue:@"张三" forKey:@"name"];
[p setValue:@"男" forKey:@"gender"];
[p setValue:@"24" forKey:@"age"];
[p setValuesForKeysWithDictionary:@{@"name":@"张四",@"gender":@"女",@"age":@16,@"wight":@44}];

[p setValue:@"张狗" forKeyPath:@"stu.name"];

//[stu sayHi];
NSLog(@"%@",p.stu.name);
[p sayHi];