如何从Azure Machine Learning Studio中的R或Python脚本中读取本地文件？

I need to read a csv file, which is saved in my local computer, from code within an "Execute R/Python Script" in an experiment of Azure Machine Learning Studio. I don't have to upload the data as usually, i.e. from Datasets -> New -> Load from local file or with an Import Data module. I must do it with code. In principle this is not possible, neither from an experiment nor from a notebook, and in fact I always got error. But I'm confused because the documentation about I need to read a csv file, which is saved in my