我算的不收敛，有什么办法吗，或者有成功的案例可以参考一下

<img style="font-family:宋体, SimSun;font-size:14px;vertical-align: middle; margin-right: 2px;" src="http://www.jishulink.com/platform/static/ueditor/dialogs/attachment/fileTypeImages/icon_txt.gif"/><a style="font-family:宋体, SimSun;font-size:14px; color:#0066cc;" href="https://oss.jishulink.com/upload/201712/1513170864553_QQ视频20171213211238.mp4" title="QQ视频20171213211238.mp4">QQ视频20171213211238.mp4</a>用显示算法计算