選擇器、屬性及方法調用的配合使用：
<style> #a{ width: 200px; height: 100px; background-color: red; } .b{ width: 200px; height: 100px; background-color: green; } .div1{ width: 200px; height: 100px; background-color:aqua; } </style> <body> <div id="a"></div> <div class="b" style="background-color: black;"></div> <div class="b" style="background-color: chartreuse;"></div> <div class="div1">精英教育</div> <input type="text" name="ipt1" /> <input type="checkbox" name="ckb2" / disabled="disabled"> </body> <script> //先選擇元素在進行加效果 //ID選擇器(使用較高JS) var a = document.getElementById("a"); //檢測類型 alert(typeof(document.getElementById("a"))) a.style.backgroundColor="royalblue"; a.innerHTML ="<span>hello<span>"; a.innerText = "<span>hello<span>";// class選擇器 var b_class = document.getElementsByClassName("b"); b_class[0].style.backgroundColor="red"; var b_class = document.getElementsByClassName("b"); b_class[1].style.backgroundColor="blueviolet";// 標簽選擇器 var b_b = document.getElementsByTagName("div"); b_b[1].style.backgroundColor="yellow"; var div_1 = document.getElementsByName("ipt1"); div_1[0].value="文本框"; var ckb2 = document.getElementsByName("ckb2")[0]; ckb2.setAttribute("checked",""); //移除屬性 ckb2.removeAttribute("disabled") //創造元素 var a = document.createElement("a"); a.setAttribute("href","http://www.baidu.com"); a.innerText="百度一下"; document.body.appendChild(a); document.body.removeChild(a); div1.appendChild(a); </script><body> <!--DOM Document Object Model BOM Bowers O M--> <div id="div1" class="div1"></div> <div class="div1"></div> <input type="text" name="ipt1" /> <input type="checkbox" name="ckb1" disabled="disabled"/> </body></html><script>// alert('1111');// window.alert('123') var div1 = document.getElementById('div1'); div1.style.backgroundColor = 'red';// div1.innerHTML = "<ul><li>123456</li></ul>"; div1.innerText = "<ul><li>123456</li></ul>"; var div1_class = document.getElementsByClassName('div1'); div1_class[1].style.backgroundColor = "green"; var div1_1 = document.getElementsByTagName('div'); div1_1[1].style.backgroundColor = "blue"; // jQuery var div1_2 = document.getElementsByName('ipt1'); div1_2[0].value = '123'; var ckb1 = document.getElementsByName('ckb1')[0];// ckb1.setAttribute("checked","checked"); ckb1.removeAttribute('disabled'); var a = document.createElement("a"); a.setAttribute("href","http://www.baidu.com"); a.innerText = "百度"; document.body.appendChild(a); document.body.removeChild(a); div1.appendChild(a);</script>以上這篇淺談JS中的常用選擇器及屬性、方法的調用就是小編分享給大家的全部內容了，希望能給大家一個參考，也希望大家多多支持武林網。
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