文件目录遍历

摘要：递归遍历目录和文件作业和习题获取当前目录下所有文件及文件目录遍历列表拼接绝对路径目录文件栈深度遍历目录文件队列广度遍历目录文件复制目录和文件复制目录如果源目录不存在直接停止如果目标文件不存在或者如果该文件

import os

path = r"F:PycharmProjectsasic gram作业和习题	est"

def getAllFileAndDir(path):
    # 获取当前目录下所有文件及文件目录
    fileList = os.listdir(path)
    # print(fileList)

    # 遍历fileList列表
    for fileName in fileList:
        # isdir isfile
        # print(fileName)
        # 拼接绝对路径
        absFile = os.path.join(path,fileName)
        if os.path.isdir(absFile):
            print(absFile+"---目录")
            getAllFileAndDir(absFile)
        else:
            print(absFile+"---文件")    
getAllFileAndDir(path)

import collections

def getAllFileAndDir(sourcePath):

    stack = collections.deque()
    stack.append(sourcePath)
    while len(stack) != 0:
        path = stack.pop()
        fileList = os.listdir(path)
        for fileName in fileList:
            absFile = os.path.join(path, fileName)
            if os.path.isdir(absFile):
                print(absFile+"---目录")
                stack.append(absFile)
            else:
                print(absFile+"---文件")

getAllFileAndDir(path)

def getAllFileAndDir(sourcePath):

    queue = collections.deque()
    queue.append(sourcePath)

    while len(queue) !=0:
        path = queue.popleft()
        fileList = os.listdir(path)
        for fileName in fileList:
            absFile = os.path.join(path, fileName)
            if os.path.isdir(absFile):
                print(absFile+"---目录")
                queue.append(absFile)
            else:
                print(absFile+"---文件")


getAllFileAndDir(path)

import os
# 复制目录
def copyDir(sourDir,targetDir):
    if not os.path.exists(sourDir):
        print("如果源目录不存在,直接停止")
        return

    if not os.path.exists(targetDir):
        os.makedirs(targetDir)

    listName = os.listdir(sourDir)
    for dirNameAndFileName in listName:
        sourAbsPath = os.path.join(sourDir,dirNameAndFileName)
        targetAbsPath = os.path.join(targetDir,dirNameAndFileName)
        if os.path.isdir(sourAbsPath):
            copyDir(sourAbsPath,targetAbsPath)
        if os.path.isfile(sourAbsPath):
            #   如果目标文件不存在,   或者   如果该文件已经存在但是文件大小不一样
            if (not os.path.exists(targetAbsPath)) or (os.path.exists(targetAbsPath) and (os.path.getsize(sourAbsPath) != os.path.getsize(targetAbsPath))):
                rf = open(sourAbsPath,"rb")
                wf = open(targetAbsPath,"wb")
                while True:
                    content = rf.read(1024*1024)
                    if len(content) == 0:
                        break
                    wf.write(content)
                    wf.flush()
                wf.close()
                rf.close()

sPath = r"F:PycharmProjectsasic gram作业和习题	est"
tPath = r"F:PycharmProjectsasic gram作业和习题	estNew"
copyDir(sPath, tPath)

1.一个函数接受文件夹的名称作为输入参数,请将该文件夹中的所有文件复制到 文件夹名-副本  中去,请补充缺失的代码. (20分)
def  copyFile(sPath)
2.题1复制过程中,每隔一秒打印一次复制进度(即当前已复制个数/总文件个数)(15分)

import os
import collections
import time
import sys
def getFileNum(sPath):
    num = 0
    stack = collections.deque()
    stack.append(sPath)
    while len(stack) != 0:
        path = stack.pop()
        fileList = os.listdir(path)
        for fileName in fileList:
            absFile = os.path.join(path, fileName)
            if os.path.isdir(absFile):
                stack.append(absFile)
            else:
                num += 1
    return num

def copyFile(sPath):
    tPath = r"F:PycharmProjectsasic gram作业和习题Anaconda3-副本"
    stack1 = collections.deque()
    stack1.append(sPath)
    stack2 = collections.deque()
    stack2.append(tPath)
    timepoint = 1
    filenum = 0
    while len(stack1) != 0:
        sPath = stack1.pop()
        tPath = stack2.pop()
        if not os.path.exists(tPath):
            os.makedirs(tPath)
        listName = os.listdir(sPath)
        for filename in listName:
            absfile = os.path.join(sPath, filename)
            tabsfile = os.path.join(tPath, filename)
            if os.path.isdir(absfile):
                stack1.append(absfile)
                stack2.append(tabsfile)
            else:
                rf = open(absfile, "rb")
                wf = open(tabsfile, "wb")
                while True:
                    content = rf.read(1024*1024)
                    if len(content) == 0:
                        break
                    wf.write(content)
                    # 刷新缓冲区
                    wf.flush()
                    if time.clock()//1 == timepoint:
                         sys.stdout.write("
进度:%d/%d"%(filenum,num))
                         timepoint += 1
                wf.close()
                rf.close()
                filenum += 1
    sys.stdout.write("
进度:%d/%d" % (num, num))


sPath = r"F:PycharmProjectsasic gram作业和习题Anaconda3"

num = getFileNum(sPath)
# print(num)
start_time = time.clock()
copyFile(sPath)