智航學編程004（瞄準鏡）

import turtle
turtle.pensize(12)
turtle.screensize(600,600,"yellow")
turtle.circle(150)
turtle.penup()
turtle.goto(0,150)
turtle.pendown()
turtle.dot(15)
for a in range(4):
    turtle.forward(160)
    turtle.right(90) 

 

作品二：

import turtle

turtle.screensize(500,500,"wheat") #設置屏幕大小和背景色

turtle.speed(0)

turtle.circle(100)  #畫圓，100是圓的半徑

turtle.penup()
turtle.goto(0,100)
turtle.pendown()

#準星
turtle.dot(10)

#畫輔助線
for i in range(4):
    turtle.penup()
    turtle.forward(75)
    turtle.pendown()
    turtle.forward(75)
    turtle.penup()
    turtle.backward(150)
    turtle.pendown()
    turtle.right(90)

turtle.hideturtle() #隱藏小海龜