返回目录和子目录中的文件数

Question

尝试创建一个函数,返回找到目录及其子目录的文件数.只需要帮助入门

Answer 1

单线

import os
cpt = sum([len(files) for r, d, files in os.walk("G:\CS\PYTHONPROJECTS")])

Answer 2

使用os.walk.它会为你做递归.有关示例,请参见http://www.pythonforbeginners.com/code-snippets-source-code/python-os-walk/.

total = 0
for root, dirs, files in os.walk(folder):
    total += len(files)

Answer 3

只需添加一个elif处理目录的语句：

def fileCount(folder):
    "count the number of files in a directory"

    count = 0

    for filename in os.listdir(folder):
        path = os.path.join(folder, filename)

        if os.path.isfile(path):
            count += 1
        elif os.path.isfolder(path):
            count += fileCount(path)

    return count