python版本为:2.7 import os,time,shutil,datetime def rmdir(deldir,N): dellist=os.listdir(deldir) deldate= datetime.timedelta(days=N) now = datetime.datetime.now() for i in dellist: os.chdir(deldir) ctime = datetime.datetime.fromtimestamp(os.path.getctime
文件夹中含有子文件夹,修改子文件夹中的图像存储格式,把png图像改为jpg图像,python代码如下: import os import cv2 filePath = 'C:\\Users\\admin\\Desktop\\img' for dirpath, dirnames, filenames in os.walk(filePath): path = [os.path.join(dirpath, names) for names in filenames] for str in path:
参考: 1.https://ww2.mathworks.cn/help/matlab/ref/exist.html?searchHighlight=exist&s_tid=doc_srchtitle 2. 官方解释: exist 检查变量.脚本.函数.文件夹或类的存在情况 全页折叠 语法 exist name exist name searchType A = exist(___) 说明 示例 exist name 以数字形式返回 name 的类型.此列表描述与每个值关联的类型: 0 - n
通过多次遍历达到找出所有文件的目的 import os rootdir=["d:/77"] c=[] for i in rootdir: for parent,dirnames,filenames in os.walk(i): for filename in filenames: c.append(os.path.join(parent,filename)) print(c)