- 注意标准库的两种导入与使用方式,建议大家采用<库名>.<函数名>的方式。
- 对前面的代码进行优化,用for,while,if,def实现:
1.画五角星
import turtle
turtle.shape('turtle')
turtle.color('yellow')
turtle.bgcolor('red')
turtle.fillcolor('yellow')
turtle.begin_fill()
for i in range(5):
turtle.forward(100)
turtle.right(144)
turtle.end_fill()
2.画同心圆
import turtle
turtle.shape('turtle')
turtle.begin_fill()
for i in range(5):
turtle.up()
turtle.goto(0,-30*(i+1))
turtle.down()
turtle.circle(30*(i+1))
turtle.end_fill()
3.画太阳花
import turtle
turtle.shape('turtle')
turtle.bgcolor('pink')
turtle.color('red')
turtle.fillcolor('yellow')
turtle.begin_fill()
while True:
turtle.forward(200)
turtle.left(170)
if(abs(turtle.pos()))<1:
break
turtle.end_fill()
4.画五个角星
import turtle
turtle.shape('turtle')
turtle.setup(600,400,0,0)
turtle.color('yellow')
turtle.bgcolor('red')
turtle.fillcolor('yellow')
def cxtgoto(x,y):
turtle.up()
turtle.goto(x,y)
turtle.down()
cxtgoto(-250,75)
turtle.begin_fill()
for i in range(5):
turtle.forward(100)
turtle.right(144)
turtle.end_fill()
cxtgoto(-130,150)
turtle.begin_fill()
for i in range(5):
turtle.forward(40)
turtle.right(144)
turtle.end_fill()
cxtgoto(-80,100)
turtle.begin_fill()
for i in range(5):
turtle.forward(40)
turtle.right(144)
turtle.end_fill()
cxtgoto(-90,30)
turtle.begin_fill()
for i in range(5):
turtle.forward(40)
turtle.right(144)
turtle.end_fill()
cxtgoto(-130,-20)
turtle.begin_fill()
for i in range(5):
turtle.forward(40)
turtle.right(144)
turtle.end_fill()