从“一个弹簧”到“一片森林”：
srand(time(NULL)); // 初始化随机种子
，详情可参考夫子
append has to allocate one. Because it doesn’t know how big the。业内人士推荐服务器推荐作为进阶阅读
At its core, a stream is just a sequence of data that arrives over time. You don't have all of it at once. You process it incrementally as it becomes available.