for循环：用turtle画一颗五角星

import turtle
# 设置初始位置
turtle.penup()
turtle.left(90)
turtle.fd(200)
turtle.pendown()
turtle.right(90)

# 花蕊
turtle.fillcolor("red")
turtle.begin_fill()
turtle.circle(10, 180)
turtle.circle(25, 110)
turtle.left(50)
turtle.circle(60, 45)
turtle.circle(20, 170)
turtle.right(24)
turtle.fd(30)
turtle.left(10)
turtle.circle(30, 110)
turtle.fd(20)
turtle.left(40)
turtle.circle(90, 70)
turtle.circle(30, 150)
turtle.right(30)
turtle.fd(15)
turtle.circle(80, 90)
turtle.left(15)
turtle.fd(45)
turtle.right(165)
turtle.fd(20)
turtle.left(155)
turtle.circle(150, 80)
turtle.left(50)
turtle.circle(150, 90)
turtle.end_fill()

# 花瓣1
turtle.left(150)
turtle.circle(-90, 70)
turtle.left(20)
turtle.circle(75, 105)
turtle.setheading(60)
turtle.circle(80, 98)
turtle.circle(-90, 40)

# 花瓣2
turtle.left(180)
turtle.circle(90, 40)
turtle.circle(-80, 98)
turtle.setheading(-83)

# 叶子1
turtle.fd(30)
turtle.left(90)
turtle.fd(25)
turtle.left(45)
turtle.fillcolor("green")
turtle.begin_fill()
turtle.circle(-80, 90)
turtle.right(90)
turtle.circle(-80, 90)
turtle.end_fill()

turtle.right(135)
turtle.fd(60)
turtle.left(180)
turtle.fd(85)
turtle.left(90)
turtle.fd(80)

# 叶子2
turtle.right(90)
turtle.right(45)
turtle.fillcolor("green")
turtle.begin_fill()
turtle.circle(80, 90)
turtle.left(90)
turtle.circle(80, 90)
turtle.end_fill()

turtle.left(135)
turtle.fd(60)
turtle.left(180)
turtle.fd(60)
turtle.right(90)
turtle.circle(200, 60)
turtle.write('I love you!', font=("Microsoft JhengHei", 24))
turtle.hideturtle()
turtle.done()

import turtle
turtle.forward(100)
turtle.right(144)
turtle.forward(100)
turtle.right(144)
turtle.forward(100)
turtle.right(144)
turtle.forward(100)
turtle.right(144)
turtle.forward(100)
turtle.right(144)
turtle.done()

import turtle
turtle.setup(600,300,0,0)
turtle.bgcolor('yellow')

turtle.color("red")
turtle.fillcolor("red")
turtle.begin_fill()

for i in range(5):

turtle.forward(50)

turtle.right(144)

turtle.end_fill()

turtle.done()