摘要: 不可变集合 创建集合 NSSet *set = [NSSet setWithObjects:@5,@6, nil]; NSSet *set1 = [[NSSet alloc]initWithArray:@[@13,@"nihao",@16]]; NSSet *set2 = [NSSet setWit 阅读全文
posted @ 2016-03-02 22:26 原码 阅读(115) 评论(0) 推荐(0) 编辑