2.1 turtle库概述
turtle(海龟)库是turtle绘图体系的Python实现
2.2 标准库
Python计算生态 = 标准库 + 第三方库
2.3 turtle的原(wan)理(fa)
turtle(海龟)是一种真实的存在
2.4 turtle的魅力
3.1 turtle的绘图窗体
turtle.setup(width, height, startx, starty)
4.1 turtle空间坐标体系
import turtle
turtle.goto( 100, 100)
turtle.goto( 100,-100)
turtle.goto(-100,-100)
turtle.goto(-100, 100) turtle.goto(0,0)
turtle.seth(angle)
import turtle
turtle.left(45)
turtle.fd(150)
turtle.right(135)
turtle.fd(300)
turtle.left(135)
turtle.fd(150)
6.1 RGB色彩模式
由三种颜色构成的万物色
6.2 常用RGB色彩
英文名称RGB整数值RGB小数值中文名称white255,255,2551,1,1白色yellow255,255,01,1,0黄色magenta255,0,2551,0,1洋红cyan0,255,2550,1,1青色blue0,0,2550,0,1蓝色black0,0,00,0,0黑色seashell255,245,2381,0.96,0.93海贝色gold255,215,01,0.84,0金色pink255,192,2031,0.75,0.80粉红色brown165,42,420.65,0.16,0.16棕色purple160,32,2400.63,0.13,0.94紫色tomato255,99,711,0.39,0.28番茄色6.3 turtle的RGB色彩模式
默认采用小数值 可切换为整数值
turtle.colormode(mode)
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