为什么在执行python dataset/download_data.py之后data文件夹没有任何反应

[cxk555]

[cxk555]

原因是这部分data_dir忘记定义了
def download_file(url):
file_name = url.split('?')[1] + '.xml'
try:
response = requests.get(url, stream=True, headers=headers)
with open(os.path.join(data_dir, file_name), 'w') as out_file: