这是一个使用Python生成文件、目录树的程序,其中遇到一个问题是: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。现在做法是: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,就可以确定该目录遍历结束。
# 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
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