Python – turtle.Screen().setup() 方法

turtle 模块以面向对象和面向过程的方式提供海龟图形原语。因为它使用 tkinter 作为底层图形，所以它需要安装一个支持 Tk 的Python版本。

turtle.Screen().setup() 方法：

此方法用于设置主窗口的大小和位置。

Syntax : turtle.Screen().setup(width=0.5, height=0.75, startx=None, starty=None)

Parameters: This method has following parameters:

• width: as integer a size in pixels, as float a fraction of the screen. Default is 50% of screen.
• height: as integer the height in pixels, as float a fraction of the screen. Default is 75% of screen.
• startx: if positive, starting position in pixels from the left edge of the screen, if negative from the right edge. Default, startx=None is to center window horizontally.
• starty: if positive, starting position in pixels from the top edge of the screen, if negative from the bottom edge. Default, starty=None is to center window vertically.

以下是上述方法的实现以及一些示例：

示例 1：更改窗口的配置。

Python3

# import turtle package
import turtle
  
# making turtle object
sc = turtle.Screen()
  
# setup the screen size
sc.setup(400,400)
  
# set the background color
sc.bgcolor("blue")
  
# This code is contributed
# by Deepanshu Rustagi.

输出 ：

示例 2：通过在 setup() 方法中设置 'startx' 和 'starty' 来更改窗口的位置。

Python3

# import turtle package
import turtle
  
# making turtle object
sc = turtle.Screen()
  
# set the screen size 400x400 pixels
# set the screen position by
# startx to 50
# starty to-200
sc.setup(400, 400, startx = 50,
         starty = -200)
  
# set the background color
sc.bgcolor("blue")
  
# This code is contributed 
# by Deepanshu Rustagi.

输出 ：