Google搜索引擎实用技巧第三招-限定价格范围搜索
运用“..”来限定价格范围搜索，如果你要找一个特定价格范围内的某种产品，如搜索价格在400美元-500美元的PDA。
Search for a Range Using ..
If you are looking for a product in a specific price range use the following. It will search for the pages with text PDA, and $400 to $450 ranged text.
Warning: count(): Parameter must be an array or an object that implements Countable in /www/wwwroot/www.jeasin.com/wp-includes/class-wp-comment-query.php on line 405