Pre-class learning python 01 turtle

Python examples:

turtle library introduced import turtle # 
t = turtle.Pen () # provided a brush 
t.shape ( 'turtle') # turtle shape to the brush 
t.up () # lifting brush 
t.fd (-250) # lift since the brush is moved without leaving lines 
t.down () # brush down 
t.pensize (25) # set brush thickness 
t.seth (-40) # absolute angle becomes -40 
t.color ( 'Purple') # brush color to violet 
for i in range (4): # circle drawn by an array of distorted body 
    t.circle (40,80) # radius 40, the angle of the circular portion 80 
    t.circle (-40,80) 
T .left (40) # 40 left rotation direction doing, the relative angle 
t.fd (40) # forward 40 
t.circle (20, 180) # circle, turn 
t.fd (30) 
turtle.mainloop () # holding cycle the window does not disappear 

colorful snake modified example ...

color_list = ['red','pink','green','blue','yellow']

for i in color_list:
    t.color(i)
    t.circle(40, 80)
    t.circle(-40, 80)

t.color('black')
t.left(40)
t.fd(40)
t.circle(20,180)
t.fd(30)
turtle.mainloop()

作业：

import turtle
t=turtle.Pen()
t.shape('turtle')       #设置画笔为海龟
turtle.setup(800,800,100,100)   #turtle.setup(width,height,startx,starty) 前两参数窗体大小，后两参数窗体左上角所在显示器位置
t.speed(15)         #画笔速度

t.fillcolor('yellow')   #脸,设置填充色为黄色
t.color('yellow')   #设定画笔颜色为黄色
t.pensize(10)       #设置画笔粗细
t.begin_fill()      #开始填充颜色
t.circle(150,360)   #画圆
t.end_fill()        #结束填充颜色

t.up()              #嘴,抬起画笔
t.fd(140)           #画笔前进140
t.left(90)          #向左旋转90度
t.fd(140)
t.down()            #落下画笔
t.color('red')
t.pensize(5)
t.circle(138,-180)

t.up()      #左眼
t.goto(-20,180)     #画笔移动到指定坐标
t.down()
t.color('white')
t.pensize(25)
t.left(70)      #相对角度向左旋转70°
for i in range(10):     #调整眼睛弧度
    t.fd(-10)
    t.left(5)
t.up()      #左眼珠
t.goto(-110,170)
t.down()
t.fillcolor('black')
t.color('black')
t.pensize(10)
t.begin_fill()
t.circle(10,360)
t.end_fill()

t.up()      #右眼
t.goto(20,180)
t.down()
t.color('white')
t.pensize(25)
t.seth(20)      #绝对角度为20°
for i in range(10):
    t.fd(10)
    t.right(5)
t.up()      #右眼珠
t.goto(20,170)
t.down()
t.fillcolor('black')
t.color('black')
t.pensize(10)
t.begin_fill()
t.circle(10,360)
t.end_fill()

t.up()      #左眉毛
t.goto(-20,240)
t.down()
t.color('black')
t.pensize(2)
t.seth(130)      #绝对角度为130°
for i in range(10):     #调整眉毛弧度，粗细
    t.fd(6)
    t.left(7)
    t.pensize(i)
for i in range(10):
    t.fd(6)
    t.left(7)
    t.pensize(10-i)

t.up()      #右眉毛
t.goto(20,240)
t.down()
t.color('black')
t.pensize(2)
t.seth(50)      #绝对角度为50°
for i in range(10):
    t.fd(6)
    t.right(7)
    t.pensize(i)
for i in range(10):
    t.fd(6)
    t.right(7)
    t.pensize(10-i)
turtle.mainloop()   #保持循环,保留窗口

Pre-class learning python 01 turtle

Guess you like