第三天
目录
简述变量的组成
变量名
赋值符号
变量值
简述变量名的命名规范
要有意义
一般以数字，字母和_组成，开头不能用数字
不能以关键词命名
简述注释的作用
让后面的代码失效，不让解释器解释代码，就是一串普通的字符
解释前面的代码
turtle画图
import turtle
turtle.setup(800,600)
turtle.pensize(15)
turtle.colormode(255)#黄色
turtle.pencolor(255,255,0)
# o
turtle.pu()
turtle.bk(200)
turtle.pd()
turtle.seth(90)
turtle.circle(50,360)
#j
turtle.colormode(0)#绿色
turtle.pencolor(0,255,0)
turtle.seth(0)
turtle.pu()
turtle.fd(60)
turtle.pd()
turtle.left(90)
turtle.fd(25)
turtle.pu()
turtle.fd(20)
turtle.pd()
turtle.left(90)
turtle.circle(2,360)
turtle.left(90)
turtle.pu()
turtle.fd(45)
turtle.pd()
turtle.fd(35)
turtle.circle(-25,180)
# b
turtle.colormode(255)#粉色
turtle.pencolor(255,48,48)
turtle.pu()
turtle.fd(20)
turtle.right(90)
turtle.fd(90)
turtle.seth(90)
turtle.fd(40)
turtle.left(180)
turtle.pd()
turtle.fd(80)
turtle.left(90)
turtle.circle(20,180)
turtle.pu()
turtle.seth(0)
# k
turtle.colormode(255)#粉色
turtle.pencolor(255,105,180)
turtle.fd(50)
turtle.seth(90)
turtle.fd(45)
turtle.seth(270)
turtle.pd()
turtle.fd(80)
turtle.seth(90)
turtle.pu()
turtle.fd(45)
turtle.pd()
turtle.seth(45)
turtle.fd(50)
turtle.pu()
turtle.left(180)
turtle.fd(50)
turtle.pd()
turtle.seth(0)
turtle.right(45)
turtle.fd(50)
