2文本导入数据.txt
10指标概述.pdf
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微信截图_20191229151658.png
http://cprs.patentstar.com.cn/Search/Detail?ANE=9HDD7GBA9EHD9HCD6DBA7CFA7DBA6BAA9GAD9FIG4AAA9DIC
http://cprs.patentstar.com.cn/Search/ResultList?CurrentQuery=54Ot5rC05Zmo5aSW5aOz5omj5ZCI5Y6L57Sn6KOF572uIC9ZWQ==&type=cn
https://zhidao.baidu.com/question/114363698.html
https://wenku.baidu.com/view/62a35c4ffd0a79563d1e7250.html
先设置个拓展升序,然后设置个结果集筛选前7
sql中limit 7