添加文件

hadoop fs -appendToFile /tmp/country.csv /my/country

创建文件夹

hadoop fs -mkdir -p /my/files

删除文件夹

hadoop fs -rm -r -f /my
hadoop fs -rm -r -f /my/files

python -m pip install pandas -i https://mirrors.volces.com/pypi/simple/ --trusted-host mirrors.volces.com