71. 简化路径
#核心思想:栈
#依据题意 ..不需要出栈，其余入栈
class Solution:
def simplifyPath(self, path: str) -> str:
stack = []
for p in path.split('/'): #以'/'分割
if stack and p == '..':
stack.pop()
elif p not in " ..":
stack.append(p)
return '/' + '/'.join(stack) #均以'/'开头
标签：str,..,路径,简化,71,path,stack From： https://www.cnblogs.com/blogy-y/p/16639116.html