Article directory
Font color display
Add ==== on both sides of the font
Adjust the size of inserted pictures
Note that there is one more =600x600 below and there is a space before the equal sign.
Insert image description here](https://img-blog.csdnimg.cn/5a0d3d2d37cf481db0e1346432be3da1.png
[Insert image description here](https://img-blog.csdnimg.cn/5a0d3d2d37cf481db0e1346432be3da1.png =600x600)
Image center
(Picture link #pic_center)