递归遍历目录和文件
import os
path = r'F:\PycharmProjects\basic gram\作业和习题\test'
def getAllFileAndDir(path):
栈 深度遍历
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)
队列 广度遍历
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)
复制目录和文件
import os
文件复制实例
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:\PycharmProjects\basic 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('\r进度:%d/%d'%(filenum,num)) timepoint += 1 wf.close() rf.close() filenum += 1 sys.stdout.write('\r进度:%d/%d' % (num, num)) sPath = r'F:\PycharmProjects\basic gram\作业和习题\Anaconda3' num = getFileNum(sPath) # print(num) start_time = time.clock() copyFile(sPath)
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