在bin目录下(没有设置环境变量),
mongoexport -d Structure_Patents_infos -c patents_texts -o D:PostgraduatePython文本分类6.18patents.json -f "Patent_name,Patent_num,Patent_abstract,Patent_field,Patent_background,Patent_summary";
在bin目录下(没有设置环境变量),
mongoexport -d Structure_Patents_infos -c patents_texts -o D:PostgraduatePython文本分类6.18patents.json -f "Patent_name,Patent_num,Patent_abstract,Patent_field,Patent_background,Patent_summary";