博客地址：https://www.cnblogs.com/zylyehuo/
# -*- coding: utf-8 -*-
from collections import deque
maze = [
[1, 1, 1, 1, 1, 1, 1, 1, 1, 1],
[1, 0, 0, 1, 0, 0, 0, 1, 0, 1],
[1, 0, 0, 1, 0, 0, 0, 1, 0, 1],
[1, 0, 0, 0, 0, 1, 1, 0, 0, 1],
[1, 0, 1, 1, 1, 0, 0, 0, 0, 1],
[1, 0, 0, 0, 1, 0, 0, 0, 0, 1],
[1, 0, 1, 0, 0, 0, 1, 0, 0, 1],
[1, 0, 1, 1, 1, 0, 1, 1, 0, 1],
[1, 1, 0, 0, 0, 0, 0, 0, 0, 1],
[1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
]
# 上下左右四个节点
dirs = [
lambda x, y: (x + 1, y),
lambda x, y: (x - 1, y),
lambda x, y: (x, y - 1),
lambda x, y: (x, y + 1)
]
def print_r(path):
real_path = []
i = len(path) - 1
while i >= 0:
real_path.append(path[i][0:2])
i = path[i][2]
real_path.reverse()
for node in real_path:
print(node)
def maze_path_queue(x1, y1, x2, y2):
queue = deque()
queue.append((x1, y1, -1))
path = [] # 存储路径
while len(queue) > 0: # 当队列不空时循环
curNode = queue.popleft()
path.append(curNode)
if curNode[0] == x2 and curNode[1] == y2:
# 终点
print_r(path)
return True
for dir in dirs:
nextNode = dir(curNode[0], curNode[1])
if maze[nextNode[0]][nextNode[1]] == 0:
queue.append((nextNode[0], nextNode[1], len(path) - 1)) # 后续节点进队，记录哪个节点带他来的
maze[nextNode[0]][nextNode[1]] = 2 # 标记为已经走过
else:
print("没有路")
return False
maze_path_queue(1, 1, 8, 8) # 起点坐标和终点坐标
