1，递归遍历文件夹下所有文件
# -* - coding: UTF-8 -* -#!/usr/bin/pythonimport ospath=r"D:\myapps"# checkFilesRec:遍历指定目录下的所有的文件（不包括文件夹）def checkFilesRec(path): for root,dirs,files in os.walk(path): for file in files: print filecheckFilesRec(path)
2，不递归遍历文件夹下当前层的文件
# -* - coding: UTF-8 -* -#!/usr/bin/pythonimport ospath=r"D:\myapps"# checkFiles:遍历指定目录下的当层所有的文件（不包括文件夹）def checkFiles(path): filesAndDirs = os.listdir (path) files = [ x for x in filesAndDirs if os.path.isfile( path + os.sep + x ) ] for file in files: print filecheckFiles(path)
3，替换某文件内字符串a为b
# -* - coding: UTF-8 -* -#!/usr/bin/pythonimport osimport repath=r"D:\myapps\python"file=r"2.py"# findAndReplace:查找path路径下的直接文件filename并将stra替换为strbdef findAndReplace(path,filename,stra,strb): file=path+os.sep+filename f = open(file, 'r' ) filer = f.read() sub = re.sub(stra,strb,filer,0); #替换stra 为 strb f.close() f = open(file, 'w' ) f.write(sub) f.close()findAndReplace(path,file,"math","thma")
4，替换指定路径下仅该层的所有文件的字符串替换操作
# -* - coding: UTF-8 -* -#!/usr/bin/pythonimport osimport repath=r"D:\myapps\python"# findAndReplace:查找path路径下的直接文件filename并将stra替换为strbdef findAndReplace(path,filename,stra,strb): file=path+os.sep+filename f = open(file, 'r' ) filer = f.read() sub = re.sub(stra,strb,filer,0); #替换stra 为 strb f.close() f = open(file, 'w' ) f.write(sub) f.close()# checkFiles:遍历指定目录下的当层所有的文件（不包括文件夹）def checkFiles(path): filesAndDirs = os.listdir (path) files = [ x for x in filesAndDirs if os.path.isfile( path + os.sep + x ) ] for file in files: findAndReplace(path,file,"math","thma")checkFiles(path)
5，指定路径下所有文件的字符串替换操作
# -* - coding: UTF-8 -* -#!/usr/bin/pythonimport osimport repath=r"D:\myapps"# findAndReplace:查找path路径下的直接文件filename并将stra替换为strbdef findAndReplace(path,filename,stra,strb): file=path+os.sep+filename f = open(file, 'r' ) filer = f.read() sub = re.sub(stra,strb,filer,0); #替换stra 为 strb f.close() f = open(file, 'w' ) f.write(sub) f.close()# checkFilesRec:遍历指定目录下的所有的文件（不包括文件夹）def checkFilesRec(path): for root,dirs,files in os.walk(path): for file in files: findAndReplace(root,file,"math","thma")checkFilesRec(path)
