add
English [?d] US [?d]
vt.Add; ?? ?? ??... ?? ??(???? ?? ??)
English [klɑ :s] US [kl?s] n.class; ??vt....? ?? ???? ??(?? ??, ???); class
adj. ?? ??, ???, ???vi.... ????(?? ??)? ??, ?? ????(?? ?? ??)? ???
jquery addClass() ??? ???
??: addClass() ???? ??? ??? ?? ??? ???? ?????. ? ??? ?? ??? ??? ???? ?? ?? ??? ??? ??? ?????. ?? ???? ???? ?? ?? ??? ??? ???? ?????.
??: ??$(selector).addClass(???)
????:
Parameters | Description |
class | ?????. ?? ??? ??? ??? ?????. |
??: ??$(selector).addClass(function(index,oldclass))
????:
Parameters | Description |
??(???,oldclass) | ?????. ??? ?? ??? ??? ??? ???? ??? ?????. |
index | ????. ???? ??? ?????. |
?? | ????. ???? ?? ??? ?????. |
jquery addClass() ??? ?
<html> <head> <script type="text/javascript" src="http://apps.bdimg.com/libs/jquery/2.1.1/jquery.min.js"></script> <script type="text/javascript"> $(document).ready(function(){ $("button").click(function(){ $("p:first").addClass("intro"); }); }); </script> <style type="text/css"> .intro { font-size:120%; color:red; } </style> </head> <body> <h1>This is a heading</h1> <p>This is a paragraph.</p> <p>This is another paragraph.</p> <button>向第一個 p 元素添加一個類</button> </body> </html>
??? ????? ??? "???? ??" ??? ?????