干货 | 这十个参数与录像质量息息相关，速来！
<section style="box-sizing: border-box;font-size: 16px;"><section style="margin-top: 10px;margin-bottom: 10px;box-sizing: border-box;" powered-by="xiumi.us"><section style="width: 2.5em;margin-left: auto;box-sizing: border-box;"><section style="width: 2.5em;border-top: 1px solid rgb(158, 158, 158);box-sizing: border-box;"><br></section><section style="height: 1.4em;border-left: 1px solid rgb(158, 158, 158);margin-top: -0.5em;margin-left: 2em;box-sizing: border-box;"><br></section></section><section style="padding-right: 0.5em;padding-left: 0.5em;box-sizing: border-box;"><section style="padding: 10px;box-sizing: border-box;"><section style="margin-right: 0%;margin-left: 0%;box-sizing: border-box;" powered-by="xiumi.us"><section style="text-align: center;font-size: 14px;color: rgb(113, 112, 113);line-height: 1.9;letter-spacing: 1.2px;box-sizing: border-box;"><p style="box-sizing: border-box;">你是否有遇到过需要修改录像机录像参数的问题？</p><p style="box-sizing: border-box;">是否常常对于需要更改的参数存在疑惑，这个参数是什么？为什么需要更改？怎么更改比较合适？</p><p style="box-sizing: border-box;">且听康康今日为你一一解释</p></section></section></section></section><section style="height: 1.4em;border-left: 1px solid rgb(158, 158, 158);margin-bottom: -0.5em;margin-left: 0.5em;box-sizing: border-box;"><br></section><section style="width: 2.5em;border-top: 1px solid rgb(158, 158, 158);box-sizing: border-box;"><br></section></section><section style="box-sizing: border-box;" powered-by="xiumi.us"><p style="white-space: normal;box-sizing: border-box;"><br style="box-sizing: border-box;"></p></section><section style="margin: 10px 0%;box-sizing: border-box;" powered-by="xiumi.us"><section style="display: inline-block;vertical-align: top;width: 15%;box-sizing: border-box;"><section style="text-align: center;margin-right: 0%;margin-left: 0%;box-sizing: border-box;" powered-by="xiumi.us"><section style="display: inline-block;width: 50px;height: 50px;vertical-align: top;overflow: hidden;background-position: 50% 50%;background-repeat: no-repeat;background-size: contain;background-attachment: scroll;background-image: url("https://mmbiz.qpic.cn/mmbiz_png/p8CaKzvQibq4wnNPrtMrxqlebKRo2V2F8A188ZTSmq92HjYhZUDrh3EiciaHdSWXewjAgIwFHwuuFPCGBzC4Q7q1g/640?wx_fmt=png");box-sizing: border-box;"><section style="margin-top: 7px;margin-right: 0%;margin-left: 0%;transform: translate3d(2px, 0px, 0px);box-sizing: border-box;" powered-by="xiumi.us"><section style="font-size: 24px;box-sizing: border-box;"><p style="box-sizing: border-box;"><strong style="box-sizing: border-box;">壹</strong></p></section></section></section></section><section style="text-align: center;margin-right: 0%;margin-left: 0%;box-sizing: border-box;" powered-by="xiumi.us"><section style="display: inline-block;width: 35px;height: 190px;vertical-align: top;overflow: hidden;background-position: 50% 50%;background-repeat: no-repeat;background-size: contain;background-attachment: scroll;background-image: url("https://mmbiz.qpic.cn/mmbiz_png/p8CaKzvQibq4wnNPrtMrxqlebKRo2V2F8BWZ1tRzxIXoWia3CaSuMAr5AmYoEFU6ngpPkPzT4hmCHPLesicWswrHQ/640?wx_fmt=png");box-sizing: border-box;"><section style="margin-top: 10px;margin-right: 0%;margin-left: 0%;box-sizing: border-box;" powered-by="xiumi.us"><section style="font-size: 18px;color: rgba(0, 0, 0, 0.95);line-height: 1.3;box-sizing: border-box;"><p style="box-sizing: border-box;"><strong style="box-sizing: border-box;">编码参数</strong></p></section></section></section></section></section><section style="display: inline-block;vertical-align: top;width: 85%;border-bottom: 3px none rgb(199, 32, 18);border-bottom-right-radius: 0px;box-shadow: rgb(0, 0, 0) 0px 0px 0px;box-sizing: border-box;"><section style="text-align: center;margin-top: 50px;margin-right: 0%;margin-left: 0%;box-sizing: border-box;" powered-by="xiumi.us"><section style="max-width: 100%;vertical-align: middle;display: inline-block;line-height: 0;border-width: 4px;border-radius: 0px;border-style: solid;border-color: rgb(255, 255, 255);width: 95%;box-shadow: rgb(119, 119, 119) 0px 0px 3px;box-sizing: border-box;"></section></section></section></section><section style="margin: 20px 0% 10px;text-align: left;box-sizing: border-box;" powered-by="xiumi.us"><section style="display: inline-block;vertical-align: middle;box-sizing: border-box;"><section style="max-width: 100%;display: inline-block;vertical-align: bottom;line-height: 0;width: 1.6em;box-sizing: border-box;"></section><section style="display: inline-block;vertical-align: bottom;padding-left: 5px;padding-right: 5px;line-height: 1.2em;margin-bottom: 2px;color: rgb(113, 112, 113);box-sizing: border-box;"><p style="box-sizing: border-box;"><strong style="box-sizing: border-box;">码流类型</strong></p></section></section></section><section style="color: rgb(113, 112, 113);font-size: 15px;line-height: 1.9;letter-spacing: 1.2px;box-sizing: border-box;" powered-by="xiumi.us"><p style="white-space: normal;box-sizing: border-box;"><span style="font-size: 14px;letter-spacing: 0px;box-sizing: border-box;">码流类型分复合流和视频流两种。</span><br style="box-sizing: border-box;"></p><p style="white-space: normal;box-sizing: border-box;"><strong style="box-sizing: border-box;"><span style="font-size: 14px;box-sizing: border-box;">复合流</span></strong><span style="font-size: 14px;box-sizing: border-box;">：录像信息包含视频和音频；</span></p><p style="white-space: normal;box-sizing: border-box;"><strong style="box-sizing: border-box;"><span style="font-size: 14px;box-sizing: border-box;">视频流</span></strong><span style="font-size: 14px;box-sizing: border-box;">：录像信息仅包含视频信息；</span></p><p style="white-space: normal;box-sizing: border-box;"><span style="font-size: 14px;box-sizing: border-box;">适用场景：支持音频通道摄像机，在对应的通道上需要将视频流改成<strong style="box-sizing: border-box;">复合流</strong></span></p></section><section style="margin: 20px 0% 10px;text-align: left;box-sizing: border-box;" powered-by="xiumi.us"><section style="display: inline-block;vertical-align: middle;box-sizing: border-box;"><section style="max-width: 100%;display: inline-block;vertical-align: bottom;line-height: 0;width: 1.6em;box-sizing: border-box;"></section><section style="display: inline-block;vertical-align: bottom;padding-left: 5px;padding-right: 5px;line-height: 1.2em;margin-bottom: 2px;color: rgb(113, 112, 113);box-sizing: border-box;"><p style="box-sizing: border-box;"><strong style="box-sizing: border-box;">分辨率</strong></p></section></section></section><section style="color: rgb(113, 112, 113);font-size: 14px;box-sizing: border-box;" powered-by="xiumi.us"><p style="white-space: normal;box-sizing: border-box;">分辨率：单位长度内包含的像素点的数量。在一个固定的平面内，分辨率越高，意味着可使用的点数越多，图像越细致。</p></section><section style="box-sizing: border-box;" powered-by="xiumi.us"><p style="white-space: normal;box-sizing: border-box;"><br style="box-sizing: border-box;"></p></section><section style="font-size: 14px;color: rgb(113, 112, 113);box-sizing: border-box;" powered-by="xiumi.us"><p style="white-space: normal;box-sizing: border-box;">监控行业常见分辨率如下：</p></section><section style="text-align: center;margin-top: 10px;margin-bottom: 10px;box-sizing: border-box;" powered-by="xiumi.us"><section style="max-width: 100%;vertical-align: middle;display: inline-block;line-height: 0;box-sizing: border-box;"></section></section><section style="margin: 20px 0% 10px;text-align: left;box-sizing: border-box;" powered-by="xiumi.us"><section style="display: inline-block;vertical-align: middle;box-sizing: border-box;"><section style="max-width: 100%;display: inline-block;vertical-align: bottom;line-height: 0;width: 1.6em;box-sizing: border-box;"></section><section style="display: inline-block;vertical-align: bottom;padding-left: 5px;padding-right: 5px;line-height: 1.2em;margin-bottom: 2px;font-size: 15px;color: rgb(113, 112, 113);letter-spacing: 1.2px;box-sizing: border-box;"><p style="box-sizing: border-box;"><strong style="box-sizing: border-box;">码率类型</strong></p></section></section></section><section style="line-height: 1.8;letter-spacing: 1.2px;color: rgb(113, 112, 113);box-sizing: border-box;" powered-by="xiumi.us"><p style="white-space: normal;box-sizing: border-box;"><strong style="box-sizing: border-box;"><span style="font-size: 14px;letter-spacing: 1.2px;box-sizing: border-box;">码率类型：</span></strong><span style="font-size: 14px;letter-spacing: 1.2px;box-sizing: border-box;">包含定码率和变码率两种。</span></p><p style="white-space: normal;box-sizing: border-box;"><strong style="box-sizing: border-box;"><span style="font-size: 14px;box-sizing: border-box;">变码率：</span></strong><span style="font-size: 14px;box-sizing: border-box;">码率自动根据静态和动态不同场景做变化，</span><span style="font-size: 14px;letter-spacing: 1.2px;box-sizing: border-box;">当镜头前面的场景变更不明显 采用较低的码率来编码，这样比较节省录像空间。</span></p><p style="white-space: normal;box-sizing: border-box;"><strong style="box-sizing: border-box;"><span style="font-size: 14px;box-sizing: border-box;">定码率：</span></strong><span style="font-size: 14px;box-sizing: border-box;">码率按照设置的码率上限编码，设备以固定的码率值来录像。</span></p></section><section style="margin: 20px 0% 10px;text-align: left;box-sizing: border-box;" powered-by="xiumi.us"><section style="display: inline-block;vertical-align: middle;box-sizing: border-box;"><section style="max-width: 100%;display: inline-block;vertical-align: bottom;line-height: 0;width: 1.6em;box-sizing: border-box;"></section><section style="display: inline-block;vertical-align: bottom;padding-left: 5px;padding-right: 5px;line-height: 1.2em;margin-bottom: 2px;color: rgb(113, 112, 113);letter-spacing: 1.2px;box-sizing: border-box;"><p style="box-sizing: border-box;"><strong style="box-sizing: border-box;">视频帧率</strong></p></section></section></section><section style="line-height: 1.8;letter-spacing: 1.2px;color: rgb(113, 112, 113);box-sizing: border-box;" powered-by="xiumi.us"><p style="white-space: normal;box-sizing: border-box;"><strong style="box-sizing: border-box;"><span style="letter-spacing: 0px;font-size: 14px;box-sizing: border-box;">视频帧率：</span></strong><span style="letter-spacing: 0px;font-size: 14px;box-sizing: border-box;">视频帧率指每秒的视频帧数。</span></p><p style="white-space: normal;box-sizing: border-box;"><strong style="box-sizing: border-box;"><span style="font-size: 14px;box-sizing: border-box;">取值范围：</span></strong><span style="font-size: 14px;box-sizing: border-box;"> 1/16fps~全帧率可选。</span></p><p style="white-space: normal;box-sizing: border-box;"><span style="font-size: 14px;box-sizing: border-box;">一般以默认设置即可，不建议做改动。</span></p><p style="white-space: normal;box-sizing: border-box;"><span style="font-size: 14px;box-sizing: border-box;">帧率设置过低，看图像有卡顿的情况</span></p><p style="white-space: normal;box-sizing: border-box;"><strong style="box-sizing: border-box;"><span style="font-size: 14px;box-sizing: border-box;">注：</span></strong><span style="font-size: 14px;box-sizing: border-box;">视频中的某一幅图像称为一帧，时间上连续的图像组成视频。</span></p></section><section style="margin: 20px 0% 10px;text-align: left;box-sizing: border-box;" powered-by="xiumi.us"><section style="display: inline-block;vertical-align: middle;box-sizing: border-box;"><section style="max-width: 100%;display: inline-block;vertical-align: bottom;line-height: 0;width: 1.6em;box-sizing: border-box;"></section><section style="display: inline-block;vertical-align: bottom;padding-left: 5px;padding-right: 5px;line-height: 1.8;margin-bottom: 2px;color: rgb(113, 112, 113);letter-spacing: 1.2px;box-sizing: border-box;"><p style="box-sizing: border-box;"><strong style="box-sizing: border-box;">码率上限</strong></p></section></section></section><section style="color: rgb(113, 112, 113);font-size: 14px;line-height: 1.8;letter-spacing: 1.2px;box-sizing: border-box;" powered-by="xiumi.us"><p style="white-space: normal;box-sizing: border-box;"><strong style="box-sizing: border-box;">码率上限（Kbps）</strong>：编码理论最大码率，录像编码的参考数值。</p><p style="white-space: normal;box-sizing: border-box;"><strong style="box-sizing: border-box;">适用场景</strong>：需降低摄像机接入或传输带宽、降低录像的存储大小，一般主要降低此参数。降低此参数亦可影响画面质量。</p><p style="white-space: normal;box-sizing: border-box;"><br></p><p style="text-align: left;"></p><p style="white-space: normal;box-sizing: border-box;"><br></p></section><section style="margin: 20px 0% 10px;text-align: left;box-sizing: border-box;" powered-by="xiumi.us"><section style="display: inline-block;vertical-align: middle;box-sizing: border-box;"><section style="max-width: 100%;display: inline-block;vertical-align: bottom;line-height: 0;width: 1.6em;box-sizing: border-box;"></section><section style="display: inline-block;vertical-align: bottom;padding-left: 5px;padding-right: 5px;line-height: 1.8;margin-bottom: 2px;color: rgb(113, 112, 113);letter-spacing: 1.2px;box-sizing: border-box;"><p style="box-sizing: border-box;"><strong style="box-sizing: border-box;">视频编码格式</strong></p></section></section></section><section style="color: rgb(113, 112, 113);font-size: 14px;line-height: 1.8;letter-spacing: 1.2px;box-sizing: border-box;" powered-by="xiumi.us"><p style="white-space: normal;box-sizing: border-box;"><strong style="box-sizing: border-box;">视频编码格式：</strong>通过特定的压缩技术，将某个视频格式的文件转换成另一种视频格式文件的方式。<br style="box-sizing: border-box;"></p><p style="white-space: normal;box-sizing: border-box;">与接入摄像机有关。若接入摄像机支持H.265，则视频编码可选项为H.264 和H.265，建议选择H265；若接入的摄像机不支持H.265，则视频编码只显示当前的视频编码格式。</p></section><section style="box-sizing: border-box;" powered-by="xiumi.us"><p style="white-space: normal;box-sizing: border-box;"><br style="box-sizing: border-box;"></p></section><section style="margin: 10px 0%;box-sizing: border-box;" powered-by="xiumi.us"><section style="display: inline-block;vertical-align: top;width: 85%;box-sizing: border-box;"><section style="text-align: center;margin-top: 50px;margin-right: 0%;margin-left: 0%;box-sizing: border-box;" powered-by="xiumi.us"><section style="max-width: 100%;vertical-align: middle;display: inline-block;line-height: 0;border-width: 4px;border-radius: 0px;border-style: solid;border-color: rgb(255, 255, 255);width: 95%;box-shadow: rgb(119, 119, 119) 0px 0px 3px;box-sizing: border-box;"></section></section></section><section style="display: inline-block;vertical-align: top;width: 15%;border-bottom: 3px none rgb(199, 32, 18);border-bottom-right-radius: 0px;box-shadow: rgb(0, 0, 0) 0px 0px 0px;box-sizing: border-box;"><section style="text-align: center;margin-right: 0%;margin-left: 0%;box-sizing: border-box;" powered-by="xiumi.us"><section style="display: inline-block;width: 50px;height: 50px;vertical-align: top;overflow: hidden;background-position: 50% 50%;background-repeat: no-repeat;background-size: contain;background-attachment: scroll;box-shadow: rgb(0, 0, 0) 0px 0px 0px;background-image: url("https://mmbiz.qpic.cn/mmbiz_png/p8CaKzvQibq4wnNPrtMrxqlebKRo2V2F8akpNCEDnUTTCYRWM4EBMdoRiaBHah8zKfjCicmFMwdgrenvpoU0O1JoA/640?wx_fmt=png");box-sizing: border-box;"><section style="margin-top: 7px;margin-right: 0%;margin-left: 0%;transform: translate3d(2px, 0px, 0px);box-sizing: border-box;" powered-by="xiumi.us"><section style="font-size: 24px;box-sizing: border-box;"><p style="box-sizing: border-box;"><strong style="box-sizing: border-box;">贰</strong></p></section></section></section></section><section style="text-align: center;margin-right: 0%;margin-left: 0%;box-sizing: border-box;" powered-by="xiumi.us"><section style="display: inline-block;width: 35px;height: 190px;vertical-align: top;overflow: hidden;background-position: 50% 50%;background-repeat: no-repeat;background-size: contain;background-attachment: scroll;background-image: url("https://mmbiz.qpic.cn/mmbiz_png/p8CaKzvQibq4wnNPrtMrxqlebKRo2V2F8BWZ1tRzxIXoWia3CaSuMAr5AmYoEFU6ngpPkPzT4hmCHPLesicWswrHQ/640?wx_fmt=png");box-sizing: border-box;"><section style="margin-top: 15px;margin-right: 0%;margin-left: 0%;box-sizing: border-box;" powered-by="xiumi.us"><section style="font-size: 18px;color: rgba(0, 0, 0, 0.95);line-height: 1.3;box-sizing: border-box;"><p style="box-sizing: border-box;"><strong style="box-sizing: border-box;">高级参数</strong></p></section></section></section></section></section></section><section style="margin: 20px 0% 10px;text-align: left;box-sizing: border-box;" powered-by="xiumi.us"><section style="display: inline-block;vertical-align: middle;box-sizing: border-box;"><section style="max-width: 100%;display: inline-block;vertical-align: bottom;line-height: 0;width: 1.6em;box-sizing: border-box;"></section><section style="display: inline-block;vertical-align: bottom;padding-left: 5px;padding-right: 5px;line-height: 1.2em;margin-bottom: 2px;color: rgb(113, 112, 113);letter-spacing: 1.8px;box-sizing: border-box;"><p style="box-sizing: border-box;"><strong style="box-sizing: border-box;">预录、延录时间</strong></p></section></section></section><section style="line-height: 1.8;letter-spacing: 1.2px;box-sizing: border-box;" powered-by="xiumi.us"><p style="white-space: normal;box-sizing: border-box;"><span style="font-size: 14px;color: rgb(113, 112, 113);box-sizing: border-box;"><strong style="box-sizing: border-box;"><span style="letter-spacing: 0px;box-sizing: border-box;">预录时间：</span></strong><span style="letter-spacing: 0px;box-sizing: border-box;">事件报警（移动侦测、报警输入、智能侦测等事件）前，事件录像的预录时间。取值范围：0 秒~30 秒。</span><br style="box-sizing: border-box;"></span></p><p style="white-space: normal;box-sizing: border-box;"><span style="font-size: 14px;color: rgb(113, 112, 113);box-sizing: border-box;"><strong style="box-sizing: border-box;">录像延时</strong>：事件结束后的延时事件录像的时间。取值范围：5 秒~600 秒。 </span></p><p style="white-space: normal;box-sizing: border-box;"><strong style="box-sizing: border-box;"><span style="font-size: 14px;color: rgb(113, 112, 113);box-sizing: border-box;">适用场景：</span></strong><span style="font-size: 14px;color: rgb(113, 112, 113);box-sizing: border-box;">非定时录像计划下延长开始和结束录像时间</span><span style="font-size: 14px;box-sizing: border-box;">。</span></p></section><section style="margin: 20px 0% 10px;text-align: left;box-sizing: border-box;" powered-by="xiumi.us"><section style="display: inline-block;vertical-align: middle;box-sizing: border-box;"><section style="max-width: 100%;display: inline-block;vertical-align: bottom;line-height: 0;width: 1.6em;box-sizing: border-box;"></section><section style="display: inline-block;vertical-align: bottom;padding-left: 5px;padding-right: 5px;line-height: 1.8;margin-bottom: 2px;color: rgb(113, 112, 113);letter-spacing: 1.2px;box-sizing: border-box;"><p style="box-sizing: border-box;"><strong style="box-sizing: border-box;">录像/图片过期时间</strong></p></section></section></section><section style="font-size: 14px;line-height: 1.8;letter-spacing: 1.2px;color: rgb(113, 112, 113);box-sizing: border-box;" powered-by="xiumi.us"><p style="white-space: normal;box-sizing: border-box;"><strong style="box-sizing: border-box;"><span style="letter-spacing: 0px;box-sizing: border-box;">录像/图片过期时间：</span></strong><span style="letter-spacing: 0px;box-sizing: border-box;">硬盘内文件最长保存时间，手动设置（天）数 ，过这个时间将被强制删除。 </span></p><p style="white-space: normal;box-sizing: border-box;"><strong style="box-sizing: border-box;"><span style="letter-spacing: 0px;box-sizing: border-box;">取值范围：</span></strong><span style="letter-spacing: 0px;box-sizing: border-box;">0~750 天。若设置为0 天则不强制删除，直到文件被覆盖。</span></p><p style="white-space: normal;box-sizing: border-box;"><strong style="box-sizing: border-box;">适用场景：</strong>指定通道录像覆盖时间。</p></section><section style="margin: 20px 0% 10px;text-align: left;box-sizing: border-box;" powered-by="xiumi.us"><section style="display: inline-block;vertical-align: middle;box-sizing: border-box;"><section style="max-width: 100%;display: inline-block;vertical-align: bottom;line-height: 0;width: 1.6em;box-sizing: border-box;"></section><section style="display: inline-block;vertical-align: bottom;padding-left: 5px;padding-right: 5px;line-height: 1.8;margin-bottom: 2px;color: rgb(113, 112, 113);letter-spacing: 1.2px;box-sizing: border-box;"><p style="box-sizing: border-box;"><strong style="box-sizing: border-box;">记录音频</strong></p></section></section></section><section style="line-height: 1.8;letter-spacing: 1.2px;color: rgb(113, 112, 113);box-sizing: border-box;" powered-by="xiumi.us"><p style="white-space: normal;box-sizing: border-box;"><strong style="box-sizing: border-box;"><span style="font-size: 14px;box-sizing: border-box;"><span style="letter-spacing: 0px;box-sizing: border-box;">记录音频：</span></span></strong><span style="font-size: 14px;box-sizing: border-box;"><span style="letter-spacing: 0px;box-sizing: border-box;">用于设置录像时是否记录音频。</span><span style="letter-spacing: 0px;line-height: 1.6;box-sizing: border-box;">默认值：勾选记录音频。</span></span></p><p style="white-space: normal;box-sizing: border-box;"><span style="letter-spacing: 0px;line-height: 1.6;font-size: 14px;box-sizing: border-box;">▶选记录音频时，请确认将<strong style="box-sizing: border-box;">码率类型</strong>选择为<strong style="box-sizing: border-box;">“复合流</strong>”。</span></p><p style="white-space: normal;box-sizing: border-box;"><strong style="box-sizing: border-box;"><span style="font-size: 14px;box-sizing: border-box;">适用场景：</span></strong><span style="font-size: 14px;box-sizing: border-box;">支持音频通道想要存储或者取消音频。</span></p></section><section style="margin: 20px 0% 10px;text-align: left;box-sizing: border-box;" powered-by="xiumi.us"><section style="display: inline-block;vertical-align: middle;box-sizing: border-box;"><section style="max-width: 100%;display: inline-block;vertical-align: bottom;line-height: 0;width: 1.6em;box-sizing: border-box;"></section><section style="display: inline-block;vertical-align: bottom;padding-left: 5px;padding-right: 5px;line-height: 1.2em;margin-bottom: 2px;color: rgb(113, 112, 113);box-sizing: border-box;"><p style="box-sizing: border-box;"><strong style="box-sizing: border-box;">录像码流</strong></p></section></section></section><section style="font-size: 14px;line-height: 1.8;letter-spacing: 1.2px;color: rgb(113, 112, 113);box-sizing: border-box;" powered-by="xiumi.us"><p style="white-space: normal;box-sizing: border-box;"><strong style="box-sizing: border-box;"><span style="letter-spacing: 0px;box-sizing: border-box;">录像码流：</span></strong><span style="letter-spacing: 0px;box-sizing: border-box;">设置存储录像时的码流参数信息。</span><span style="letter-spacing: 0px;line-height: 1.6;box-sizing: border-box;">可选择选项：主码流、子码流。</span><br style="box-sizing: border-box;"></p><p style="white-space: normal;box-sizing: border-box;"><strong style="box-sizing: border-box;"><span 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