条件路由（feature/bugfix 分流）
h-next_free = 0;，推荐阅读51吃瓜获取更多信息
。搜狗输入法2026对此有专业解读
This is the intuition the new API tries to preserve: streams should feel like iteration, because that's what they are. The complexity of Web streams – readers, writers, controllers, locks, queuing strategies – obscures this fundamental simplicity. A better API should make the simple case simple and only add complexity where it's genuinely needed.。旺商聊官方下载对此有专业解读
方法一：iOS 主工程处理转换