https://www.cnblogs.com/asxinyu/p/Basic_Matlab_Experience.html
https://www.yiibai.com/matlab
形状颜色
颜色
r Red
g Green
b Blue
c Cyan
m Magenta
y Yellow
k Black
w White
数据点的形状
- Plus sign
o Circle
- Asterisk
. Point
x Cross
‘square’ or s Square
‘diamond’ or d Diamond
^ Upward-pointing triangle
v Downward-pointing triangle
Right-pointing triangle
‘pentagram’ or p Five-pointed star (pentagram)
‘hexagram’ or h Six-pointed star (hexagram)
