选择器——基本选择器
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" lang="en"> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /> <title></title> <script type="text/javascript" src="../js/jquery-1.8.0.js"></script> </head> <body> <h1>DOM 对象转成 jQuery 对象 示例</h1> <script type="text/javascript"> $(document).ready(function() { //基本选择器 5个 var $div2=$("#myid"); $div2.click(function(){ alert($("#myid").size() +" 1"); alert($(".basketball").size() +" 2"); alert($("span") +" 3"); alert($("*") +" 4"); // alert($("#myid" +" 1")); //联合选择器 }); //1、 通配符选择器 $("*") $("*").css("background","#CCFFCC"); //2、类选择器 $(".类名") $(".myclass").css("background","lightpink").css("color","blue").css("font-size","30px"); //3、标签选择器 $("h2").css("color","mediumvioletred"); //4、#id选择器 $("#btid").css("color","brown").css("font-size","30px"); //5、联合选择器 $("#ftid,.vollegball").css("color","blueviolet"); }); </script> <div id="myid" title="myid"> <h2>兴趣爱好</h2> <p class="basketball" id="btid">篮球</p> <span class="football" id="ftid">足球</span> <div class="vollegball">排球</div> </div> <div class="myclass" title="myclass"> <h2>编程语言有哪些</h2> <p>java</p> <span>c#</span> <div>php</div> </div> </body> </html>