[示例]NSDictionary-存数据到字典及@(xxx)强转为对象的用法

代码：

#import <Foundation/Foundation.h>

int main(int argc, const char * argv[]) {
    @autoreleasepool {
        NSString *name=@"wangchongyang";
        NSInteger age=56;
        NSString *work=@"daozhang";
        NSDictionary *dic=@{@"name":name,
                            @"age":@(age),      //将NSInteger强制转换为对象
                            @"work":work};
        NSLog(@"name:%@,age:%@,work:%@",dic[@"name"],dic[@"age"],dic[@"work"]);
        
        NSMutableDictionary *dic2=[[NSMutableDictionary alloc]init];
        [dic2 setDictionary:@{@"name":@"wangyang"}];
        NSLog(@"%@",dic2);
    }
    return 0;
}