插入循环

"""
功能：五角星绘制,加入循环
"""
import turtle
def draw_pentagrm(size):
    count = 1
    # 五角星绘制
    while count <= 5:
        turtle.forward(size)
        turtle.right(144)
        count += 1
def main():
    """

  主函数
    """
turtle.penup()
turtle.backward(200)
turtle.pendown()
turtle.pensize(2)
turtle.pencolor('red')

size = 50
while size <= 100:
   draw_pentagrm(size)
   size +=  10
turtle.exitonclick()

if __name__ == '__main__':
    main()