使用python生成文件、目录树的程序。
问题:如何确定某个目录下的某一文件是最后一个遍历的文件。
因为最后一个遍历的文件前应添加"└─",非最后一个文件前添加"├─"。
看了Python的API文档没有找到相关的系统函数。
本例的做法:先统计出某个目录下的文件个数,在遍历目录时,当个数相等时,即可确定该目录遍历结束。
代码:
复制代码 代码示例:
#!/usr/bin/python
# www.jb200.com
# encoding: utf-8
import os
class dir(object):
def __init__(self):
self.SPACE = ""
self.list = []
def getCount(self, url):
files = os.listdir(url)
count = 0;
for file in files:
myfile = url + "" + file
if os.path.isfile(myfile):
count = count + 1
return count
def getDirList(self, url):
files = os.listdir(url)
fileNum = self.getCount(url)
tmpNum = 0
for file in files:
myfile = url + "" + file
size = os.path.getsize(myfile)
if os.path.isfile(myfile):
tmpNum = tmpNum +1
if (tmpNum != fileNum):
self.list.append(str(self.SPACE) + "├─" + file + "n")
else:
self.list.append(str(self.SPACE) + "└─" + file + "n")
if os.path.isdir(myfile):
self.list.append(str(self.SPACE) + "├─" + file + "n")
# change into sub directory
self.SPACE = self.SPACE + "│ "
self.getDirList(myfile)
# if iterator of sub directory is finished, reduce "│ "
self.SPACE = self.SPACE[:-4]
return self.list
def writeList(self, url):
f = open(url, 'w')
f.writelines(self.list)
print "ok"
f.close()
if __name__ == '__main__':
d = dir()
d.getDirList("c:/windows") # input directory
d.writeList("c:/1.txt") # write to file
python生成目录树的效果图: