请教写blog时如何在iphone手机或者ipad上实现贴图？how to upload photos via iphone and ipad ?

自8月份由@tumutanzi介绍加入steemit以来遇到一个的问题，
造成问题的原因是经常会在路上用iphone或者ipad看steemit。有时候也想写一些自己的东西，但遇到的问题是无法把手机或者Ipad中的图片贴到blog里面。 今日看到@chenhb1968也遇到同样的问题，请教steemit大神如何在手机或者ipad上实现贴图？谢谢！

I meet a problem during prepare my blog since I was introduced to steemit by @tumutanzi in August.
I have free time to visit steemit off-duty via iphone or ipad. Sometimes, I also want to submit my story . Unfortunately, I can not upload photos by my iphone or ipad. I notice that @chenhb1968 raised the same question. Could any steemit's experts tell me how to upload photos in my story? Thank you!