如何获取一组包含每个匹配元素集的所有唯一直接子元素的元素?
children( [selector] ) 方法获取一组包含每个匹配元素集的所有唯一直接子元素的元素。
示例
你可以尝试运行以下代码来了解如何获取一组包含每个匹配元素集的所有唯一直接子元素的元素
<html> <head> <title> jQuery Example</title> <script src = "https://ajax.googleapis.com/ajax/libs/jquery/2.1.3/jquery.min.js"></script> <script> $(document).ready(function(){ $("div").children(".selected").addClass("blue"); }); </script> <style> .blue { color:blue; } </style> </head> <body> <div> <span>Hello</span> <p class = "selected">Hello Again</p> <div class = "selected">And Again</div> <p class = "biggest">And One Last Time</p> </div> </body> </html> <style> .selected { color:blue; } </style> </head> <body> <p>This is first paragraph and <span>THIS IS BLUE</span></p> <p>This is second paragraph and <span>THIS IS ALSO BLUE</span></p> </body> </html>
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