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print "当前路径:" print os.getcwd() print "判断是否是一个文件:" print os.path.isfile(os.getcwd()) print "是否是一个目录:" print os.path.isdir(os.getcwd()) print os.system("ls") print "判断是否是绝对路径:" print os.path.isabs("excp01.py") print "检验给出的路径是否真地存:" print os.path.exists("/Users/zhouhaijun") print "返回一个路径的目录名和文件名" print os.path.split("/Users/zhouhaijun") print "分离文件名与扩展名" print os.path.splitext("tmp1.dat") print "找出某个目录下所有的文件,并在每个文件中写入“osTest”" for root,dis,files in os.walk("/Users/zhouhaijun/Desktop/hhhhh/osTest"): for name in files: print name,root,os.path.join(root,name) with open(os.path.join(root,name),"w") as fp: fp.write("good! liwen \n 学习walk" "命令") print "ok!" print "如果某个目录下文件名包含dat后缀名,则把文件后面追加写一行“被我找到了!" for root,dirs,files in os.walk("/Users/zhouhaijun/Desktop/hhhhh/osTest"): for name in files: suffix = os.path.splitext(os.path.join(root,name))[-1] if suffix in "dat": print name with open(os.path.join(root,name),"a") as fp: fp.write("\n我找到了!!!") print "修改内容:" os.system("cd /Users/zhouhaijun/Desktop/hhhhh/osTest") print "获取当前路径" os.chdir("/Users/zhouhaijun/Desktop/hhhhh/osTest") print "获取当前目录:" print os.getcwd() for line in fileinput.input("dd",inplace = 1): line = line.replace("walk","\n复习fileinput.input命令") print line print "seek函数:" with open("dd","r+") as f: old = f.read() print "内容是:",old f.seek(2) f.write("liwen is very googd!!!!")
当前路径:
/Users/zhouhaijun/PycharmProjects/Test/PythonTest/dome01 判断是否是一个文件: False 是否是一个目录: True Monday.pyinit.py contect_list.txt excp01.py one_01.py phone.dat test.kpl tmp1.dat tmp2.dat 0 判断是否是绝对路径: False 检验给出的路径是否真地存: True 返回一个路径的目录名和文件名 ('/Users', 'zhouhaijun') 分离文件名与扩展名 ('tmp1', '.dat') 找出某个目录下所有的文件,并在每个文件中写入“osTest” dd /Users/zhouhaijun/Desktop/hhhhh/osTest /Users/zhouhaijun/Desktop/hhhhh/osTest/dd liwen.dat /Users/zhouhaijun/Desktop/hhhhh/osTest /Users/zhouhaijun/Desktop/hhhhh/osTest/liwen.dat ok! 如果某个目录下文件名包含dat后缀名,则把文件后面追加写一行“被我找到了! dd 修改内容: 获取当前路径 获取当前目录: /Users/zhouhaijun/Desktop/hhhhh/osTest seek函数: 内容是: good! liwen学习
复习fileinput.input命令命令我找到了!!!