文本 - 南京中医药大学图书馆
文本 - 南京中医药大学图书馆
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检索式<br />
• 百度百科:<br />
• 指搜索引擎理解和运算的查词串,由关键词、逻辑运算<br />
符、搜索指令(搜索语法)等构成。<br />
• 关键词是检索式的主体,逻辑运算符和搜索指令根据具<br />
体的查询要求从不同的角度对关键词进行搜索限定。
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