本文实例为大家分享了python绘制汉诺塔的具体代码,供大家参考,具体内容如下
源码:
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import turtle
class Stack:
def __init__( self ):
self .items = []
def isEmpty( self ):
return len ( self .items) = = 0
def push( self , item):
self .items.append(item)
def pop( self ):
return self .items.pop()
def peek( self ):
if not self .isEmpty():
return self .items[ len ( self .items) - 1 ]
def size( self ):
return len ( self .items)
def drawpole_3(): # 画出汉诺塔的poles
t = turtle.Turtle()
t.hideturtle()
def drawpole_1(k):
t.up()
t.pensize( 10 )
t.speed( 100 )
t.goto( 400 * (k - 1 ), 100 )
t.down()
t.goto( 400 * (k - 1 ), - 100 )
t.goto( 400 * (k - 1 ) - 20 , - 100 )
t.goto( 400 * (k - 1 ) + 20 , - 100 )
drawpole_1( 0 ) # 画出汉诺塔的poles[0]
drawpole_1( 1 ) # 画出汉诺塔的poles[1]
drawpole_1( 2 ) # 画出汉诺塔的poles[2]
def creat_plates(n): # 制造n个盘子
plates = [turtle.Turtle() for i in range (n)]
for i in range (n):
plates[i].up()
plates[i].hideturtle()
plates[i].shape( "square" )
plates[i].shapesize( 1 , 8 - i)
plates[i].goto( - 400 , - 90 + 20 * i)
plates[i].showturtle()
return plates
def pole_stack(): # 制造poles的栈
poles = [Stack() for i in range ( 3 )]
return poles
def moveDisk(plates, poles, fp, tp): # 把poles[fp]顶端的盘子plates[mov]从poles[fp]移到poles[tp]
mov = poles[fp].peek()
plates[mov].goto((fp - 1 ) * 400 , 150 )
plates[mov].goto((tp - 1 ) * 400 , 150 )
l = poles[tp].size() # 确定移动到底部的高度(恰好放在原来最上面的盘子上面)
plates[mov].goto((tp - 1 ) * 400 , - 90 + 20 * l)
def moveTower(plates, poles, height, fromPole, toPole, withPole): # 递归放盘子
if height > = 1 :
moveTower(plates, poles, height - 1 , fromPole, withPole, toPole)
moveDisk(plates, poles, fromPole, toPole)
poles[toPole].push(poles[fromPole].pop())
moveTower(plates, poles, height - 1 , withPole, toPole, fromPole)
myscreen = turtle.Screen()
drawpole_3()
n = int ( input ( "请输入汉诺塔的层数并回车:\n" ))
plates = creat_plates(n)
poles = pole_stack()
for i in range (n):
poles[ 0 ].push(i)
moveTower(plates, poles, n, 0 , 2 , 1 )
myscreen.exitonclick()
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效果图:
以上就是本文的全部内容,希望对大家的学习有所帮助,也希望大家多多支持服务器之家。
原文链接:https://blog.csdn.net/m0_46278037/article/details/113824051