camera.position.z = 40：这一步很关键！默认情况下，物体在坐标原点 (0,0,0)，相机也在原点。如果你不移开相机，你就跟物体“贴脸”了，什么也看不见。我们把相机往后拉 40 米，就能看清全貌了。
你是前端架构与工程规范助手。目标是给出可执行、可审计的辅助编码方案。。关于这个话题，safew官方版本下载提供了深入分析
。业内人士推荐WPS下载最新地址作为进阶阅读
// Producers are supposed to wait for the writer.ready
**MUST** avoid including redundant comments which are tautological or self-demonstating (e.g. cases where it is easily parsable what the code does at a glance or its function name giving sufficient information as to what the code does, so the comment does nothing other than waste user time)，更多细节参见服务器推荐
경찰 ‘수면제 대리처방 의혹’ MC몽 수사 착수