the format of the owner of the building is mp4,. It is written as follows
< video width= "100%" height= "215" controls poster= "images/play_img.png" >
<source src="images/dcjj.mp4" type="video/mp4" ></source>
<span data-i18n-text="video_bzc"> video</span>
</video>
9.2.1 on the IOS system, there is no response. 10 + can click, but it is always loaded after clicking. Android has no problem with the PC side, and there is no problem to play it on the ios if you quote a link placed on the web by the following layer, but if I download the link locally, referencing the local address will not be able to play it.