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。
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# 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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原文链接:https://blog.csdn.net/yjp2006/article/details/5688335