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Python图形工具turtle绘制国际象棋棋盘

2017-07-13 22:38 891 查看

#编写程序绘制一个国际象棋的棋盘
import turtle
turtle.speed(30)
turtle.penup()
off = True
for y in range(-40, 30 + 1, 10):
for x in range(-40, 30 + 1, 10):
if off:
turtle.goto(x, y)
turtle.pendown()
turtle.begin_fill()
turtle.color("black")
turtle.forward(10)
turtle.left(90)
turtle.forward(10)
turtle.left(90)
turtle.forward(10)
turtle.left(90)
turtle.forward(10)
turtle.left(90)
turtle.end_fill()
turtle.penup()
else:
turtle.goto(x, y)
turtle.pendown()
turtle.forward(10)
turtle.left(90)
turtle.forward(10)
turtle.left(90)
turtle.forward(10)
turtle.left(90)
turtle.forward(10)
turtle.left(90)
turtle.penup()
off = bool(int(off) - 1)
off = bool(int(off) - 1)
turtle.hideturtle()
turtle.done()

通过函数的重用优化代码：

先建立一个UsefulTurtleFunctions.py 的文件夹

import turtle
#Draw a square
def drawSquare():
turtle.pendown()
turtle.forward(10)
turtle.left(90)
turtle.forward(10)
turtle.left(90)
turtle.forward(10)
turtle.left(90)
turtle.forward(10)
turtle.left(90)
turtle.penup()

再在test中调用它

#编写程序绘制一个国际象棋的棋盘

import turtle
from UsefulTurtleFunctions import *
turtle.speed(30)
turtle.penup()
off = True
for y in range(-40, 30 + 1, 10):
for x in range(-40, 30 + 1, 10):
if off:
turtle.goto(x, y)
turtle.begin_fill()
turtle.color("black")
drawSquare()
turtle.end_fill()
turtle.penup()
else:
turtle.goto(x, y)
drawSquare()
off = bool(int(off) - 1)
off = bool(int(off) - 1)
turtle.hideturtle()
turtle.done()

最后结果：

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