摘要：遞歸遍歷目錄和文件作業和習題獲取當前目錄下所有文件及文件目錄遍歷列表拼接絕對路徑目錄文件棧深度遍歷目錄文件隊列廣度遍歷目錄文件復制目錄和文件復制目錄如果源目錄不存在直接停止如果目標文件不存在或者如果該文件

import os

path = r"F:PycharmProjectsasic gram作業和習題	est"

def getAllFileAndDir(path):
    # 獲取當前目錄下所有文件及文件目錄
    fileList = os.listdir(path)
    # print(fileList)

    # 遍歷fileList列表
    for fileName in fileList:
        # isdir isfile
        # print(fileName)
        # 拼接絕對路徑
        absFile = os.path.join(path,fileName)
        if os.path.isdir(absFile):
            print(absFile+"---目錄")
            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+"---目錄")
                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+"---目錄")
                queue.append(absFile)
            else:
                print(absFile+"---文件")


getAllFileAndDir(path)

import os
# 復制目錄
def copyDir(sourDir,targetDir):
    if not os.path.exists(sourDir):
        print("如果源目錄不存在,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):
            #   如果目標文件不存在,   或者   如果該文件已經存在但是文件大小不一樣
            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作業和習題	est"
tPath = r"F:PycharmProjectsasic gram作業和習題	estNew"
copyDir(sPath, tPath)

1.一個函數接受文件夾的名稱作為輸入參數,請將該文件夾中的所有文件復制到 文件夾名-副本  中去,請補充缺失的代碼. (20分)
def  copyFile(sPath)
2.題1復制過程中,每隔一秒打印一次復制進度(即當前已復制個數/總文件個數)(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作業和習題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)
                    # 刷新緩沖區
                    wf.flush()
                    if time.clock()//1 == timepoint:
                         sys.stdout.write("
進度:%d/%d"%(filenum,num))
                         timepoint += 1
                wf.close()
                rf.close()
                filenum += 1
    sys.stdout.write("
進度:%d/%d" % (num, num))


sPath = r"F:PycharmProjectsasic gram作業和習題Anaconda3"

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