控制颜色调节控件的三种种写法

#################
# Use Array

@Order(0)
attr Color_array = [0,0,0]

Lot1 -->
    color(Color_array[0], Color_array[1], Color_array[2]) 
    extrude(10)
    X.
##################


     
#################
# OR

@Order(1)
@Range(min=0, max=1, stepsize=0.1)
attr Red = 0

@Order(2)
@Range(min=0, max=1, stepsize=0.1)
attr Green = 0

@Order(3)
@Range(min=0, max=1, stepsize=0.1)
attr Blue = 0

Lot2 -->
    color(Red, Green, Blue) 
    extrude(10) 
    X.
##################

@Color
attr col = "#FFFFFF"

lot-->
  color(col) 
  extrude(30)