Google 搜索技巧
使用引号强制进行精确匹配搜索
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“what is javascript”
:::
![](/images/google-search-skills/search_skill_01.png)
AND
运算符将只返回与这两个术语相关的结果
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html AND css
:::
![](/images/google-search-skills/search_skill_02.png)
使用OR
运算符获取与其中一个搜索词相关的结果
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(javascript OR python) free course
或者
(javascript | python) free course
:::
![search_skill_03](/images/google-search-skills/search_skill_03.png)
-
运算符将排除包含以下术语或短语的结果
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javascript -css
:::
![search_skill_04](/images/google-search-skills/search_skill_04.png)
使用*
通配符作为占位符,它将被任何单词或短语替换
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“how to start * in 6 months”
:::
![search_skill_05](/images/google-search-skills/search_skill_05.png)
在单个网站内搜索
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site:freecodecamp.org
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![search_skill_06](/images/google-search-skills/search_skill_06.png)
也可以用site:
来限制搜索结果的顶级域,例如.com
、.edu
、.org
![search_skill_06](/images/google-search-skills/search_skill_07.png)
查找特定的文件类型
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filetype:pdf learn css
或者
ext:pdf learn css
:::
![search_skill_07](/images/google-search-skills/search_skill_08.png)
搜索一个数字范围
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ecmascript 2016..2018
:::
![search_skill_08](/images/google-search-skills/search_skill_09.png)