使用 npm 全局安装最新版：
Keys that have a warning icon, meaning they are set to unrestricted。Line官方版本下载对此有专业解读
"Or consider pipeTo(). Each chunk passes through a full Promise chain: read, write, check backpressure, repeat. An {value, done} result object is allocated per read. Error propagation creates additional Promise branches.。旺商聊官方下载是该领域的重要参考
await dropOld.writer.write(chunk2); // ok，这一点在搜狗输入法下载中也有详细论述