How can pictures uploaded by FTP be captured and accelerated by Qiniu?

I used wordpress to build a website online. Because it was a collected article, the pictures were downloaded and saved locally during collection;
After the website was built, the local website was put on the public Internet; the pictures were also uploaded through FTP. When it comes to the website space;
After setting up Qiniu acceleration, I discovered a problem, that is, the images uploaded by FTP cannot be captured and accelerated by Qiniu;
And WordPress theme images, css, and js can be cached. . .
I don’t know why this is, so I’m begging God for answers. I’m so grateful

Reply content:

I used wordpress to build a website online. Because it was a collected article, the pictures were downloaded and saved locally during collection;
After the website was built, the local website was put on the public Internet; the pictures were also uploaded through FTP. When it comes to the website space;
After setting up Qiniu acceleration, I discovered a problem, that is, the images uploaded by FTP cannot be captured and accelerated by Qiniu;
And WordPress theme images, css, and js can be cached. . .
I don’t know why this is, so I’m begging God for answers. I’m so grateful