嗨！我每次使用COS对象存储SDK上传数据没有问题。下载的时候文件名称被改了，看起来是文件名称编辑问题。我使用PYTHON调用接口。请你们看一下。注意encode('utf-8')
代码：
path_ = u"/12345678910/Root/3.+软件算法类-发明技术交底书 (2).doc/"#.encode('utf-8').decode('cp936')#.encode('utf-8-sig') #
result = [os.path.basename(x['source_url']) for x in cos.list_folder(cos_request.ListFolderRequest(
u'v9cloudsec2018', path_))['data']['infos']]
显示效果： [u'3.%2B%E8%BD%AF%E4%BB%B6%E7%AE%97%E6%B3%95%E7%B1%BB-%E5%8F%91%E6%98%8E%E6%8A%80%E6%9C%AF%E4%BA%A4%E5%BA%95%E4%B9%A6%20%282%29.doc.V9.00_33.V9', u'3.%2B%E8%BD%AF%E4%BB%B6%E7%AE%97%E6%B3%95%E7%B1%BB-%E5%8F%91%E6%98%8E%E6%8A%80%E6%9C%AF%E4%BA%A4%E5%BA%95%E4%B9%A6%20%282%29.doc.V9.04_33.V9', u'3.%2B%E8%BD%AF%E4%BB%B6%E7%AE%97%E6%B3%95%E7%B1%BB-%E5%8F%91%E6%98%8E%E6%8A%80%E6%9C%AF%E4%BA%A4%E5%BA%95%E4%B9%A6%20%282%29.doc.V9.05_33.V9', u'3.%2B%E8%BD%AF%E4%BB%B6%E7%AE%97%E6%B3%95%E7%B1%BB-%E5%8F%91%E6%98%8E%E6%8A%80%E6%9C%AF%E4%BA%A4%E5%BA%95%E4%B9%A6%20%282%29.doc.V9.06_33.V9', u'3.%2B%E8%BD%AF%E4%BB%B6%E7%AE%97%E6%B3%95%E7%B1%BB-%E5%8F%91%E6%98%8E%E6%8A%80%E6%9C%AF%E4%BA%A4%E5%BA%95%E4%B9%A6%20%282%29.doc.V9.07_33.V9', u'3.%2B%E8%BD%AF%E4%BB%B6%E7%AE%97%E6%B3%95%E7%B1%BB-%E5%8F%91%E6%98%8E%E6%8A%80%E6%9C%AF%E4%BA%A4%E5%BA%95%E4%B9%A6%20%282%29.doc.V9.12_33.V9', u'3.%2B%E8%BD%AF%E4%BB%B6%E7%AE%97%E6%B3%95%E7%B1%BB-%E5%8F%91%E6%98%8E%E6%8A%80%E6%9C%AF%E4%BA%A4%E5%BA%95%E4%B9%A6%20%282%29.doc.V9.17_33.V9', u'3.%2B%E8%BD%AF%E4%BB%B6%E7%AE%97%E6%B3%95%E7%B1%BB-%E5%8F%91%E6%98%8E%E6%8A%80%E6%9C%AF%E4%BA%A4%E5%BA%95%E4%B9%A6%20%282%29.doc.V9.18_33.V9', u'3.%2B%E8%BD%AF%E4%BB%B6%E7%AE%97%E6%B3%95%E7%B1%BB-%E5%8F%91%E6%98%8E%E6%8A%80%E6%9C%AF%E4%BA%A4%E5%BA%95%E4%B9%A6%20%282%29.doc.V9.19_33.V9', u'3.%2B%E8%BD%AF%E4%BB%B6%E7%AE%97%E6%B3%95%E7%B1%BB-%E5%8F%91%E6%98%8E%E6%8A%80%E6%9C%AF%E4%BA%A4%E5%BA%95%E4%B9%A6%20%282%29.doc.V9.20_33.V9', u'3.%2B%E8%BD%AF%E4%BB%B6%E7%AE%97%E6%B3%95%E7%B1%BB-%E5%8F%91%E6%98%8E%E6%8A%80%E6%9C%AF%E4%BA%A4%E5%BA%95%E4%B9%A6%20%282%29.doc.V9.21_33.V9', u'3.%2B%E8%BD%AF%E4%BB%B6%E7%AE%97%E6%B3%95%E7%B1%BB-%E5%8F%91%E6%98%8E%E6%8A%80%E6%9C%AF%E4%BA%A4%E5%BA%95%E4%B9%A6%20%282%29.doc.V9.22_33.V9', u'3.%2B%E8%BD%AF%E4%BB%B6%E7%AE%97%E6%B3%95%E7%B1%BB-%E5%8F%91%E6%98%8E%E6%8A%80%E6%9C%AF%E4%BA%A4%E5%BA%95%E4%B9%A6%20%282%29.doc.V9.25_33.V9', u'3.%2B%E8%BD%AF%E4%BB%B6%E7%AE%97%E6%B3%95%E7%B1%BB-%E5%8F%91%E6%98%8E%E6%8A%80%E6%9C%AF%E4%BA%A4%E5%BA%95%E4%B9%A6%20%282%29.doc.V9.27_33.V9', u'3.%2B%E8%BD%AF%E4%BB%B6%E7%AE%97%E6%B3%95%E7%B1%BB-%E5%8F%91%E6%98%8E%E6%8A%80%E6%9C%AF%E4%BA%A4%E5%BA%95%E4%B9%A6%20%282%29.doc.V9.28_33.V9', u'3.%2B%E8%BD%AF%E4%BB%B6%E7%AE%97%E6%B3%95%E7%B1%BB-%E5%8F%91%E6%98%8E%E6%8A%80%E6%9C%AF%E4%BA%A4%E5%BA%95%E4%B9%A6%20%282%29.doc.V9.29_33.V9']
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