使用os模块计算一个文件的大小

一,递归写

import os
def func(filepath):
    size_sum = 0
    files = os.listdir(filepath)
    for file in files:
        f_d = os.path.join(filepath,file)
        if os.path.isdir(f_d):
            size = func(f_d)
            size_sum += size
        else:
            size_sum += os.path.getsize(filepath)
    return size_sum
print(func(r'C:\Users\LIANG\Desktop\pythonS15\python学习s15'))

二,循环写

lst = [r'D:\sylar\s15']
size_sum = 0
while lst:
    path = lst.pop()
    path_list = os.listdir(path)
    for name in path_list:
        abs_path = os.path.join(path,name)
        if os.path.isdir(abs_path):
            lst.append(abs_path)
        else:
            size_sum += os.path.getsize(abs_path)
print(size_sum)