时间:2021-03-11 python教程 查看: 1120
turtle模块:python内置的绘图工具
turtle(海龟)模块,我们是用它来进行画图的,基本上就是画简单的直线,点,和曲线。
你可以把它想成一个小海龟,在沙滩上行走,然后留下的各种痕迹,使用Turtle模块可以绘制很多精美的图形。
其他的turtle方法可以参见python官网
https://docs.python.org/zh-cn/3.7/library/turtle.html
# 绘画
# 中国国旗
# 转载请标明出处!!
import turtle
import time
def draw__stars(tur, step, x, y, arg):
"""
绘制五角星
:param tur: turtle object
:param step: 五角星一条边的长度
:param x: 开始绘制五角星的起点x坐标
:param y: 开始绘制五角星的起点y坐标
:param arg:
:return:
"""
tur.pencolor('yellow')
tur.fillcolor('yellow')
tur.up()
tur.goto(x, y)
tur.begin_fill()
tur.down()
tur.right(arg)
tur.forward(step)
tur.right(144)
tur.forward(step)
tur.right(144)
tur.forward(step)
tur.right(144)
tur.forward(step)
tur.right(144)
tur.forward(step)
tur.right(144)
tur.end_fill()
def draw__flag(tur, wide, height):
"""
绘制国旗的长方形形状
:param tur: turtle object
:param wide: the width of the flag
:param height: the height of the flag
:return: None
"""
tur.pencolor('red')
tur.fillcolor('red')
tur.goto(- wide / 2, height / 2)
tur.begin_fill()
tur.forward(wide)
tur.right(90)
tur.forward(height)
tur.right(90)
tur.forward(wide)
tur.right(90)
tur.forward(height)
tur.end_fill()
if __name__ == '__main__':
"""
main 函数
"""
# tur = turtle.Turtle()
turtle.screensize(canvwidth=3000, canvheight=2000, bg=None)
# 绘制star的turtle对象
tur_star = turtle.Turtle()
# 绘制flag的turtle对象
tur_flag = turtle.Turtle()
tur_flag.speed(3)
tur_star.speed(3)
# 隐藏turtle对象
tur_star.hideturtle()
tur_flag.hideturtle()
# 间隔3秒,可以没有,这个是我调试时加上去的
time.sleep(3)
# 绘制长方形
draw__flag(tur_flag, 630, 420)
# 绘制五角星,在合适的位置进行绘制五角星
# 调用五次函数绘制五颗五角星
draw__stars(tur_star, step=60, x=-280, y=155, arg=0)
draw__stars(tur_star, step=25, x=-182, y=177, arg=- 25)
draw__stars(tur_star, step=25, x=-175, y=125, arg=41)
draw__stars(tur_star, step=25, x=-208, y=79, arg=23)
draw__stars(tur_star, step=25, x=-265, y=75, arg=48)
# 使画面锁定
turtle.done()
运行结果
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