querySelector() 方法选择指定 CSS 选择器的第一个元素 querySelectorAll() 方法选择指定的所有元素 二、与 getElementBy 的区别 这两个新添加的 API 与 getElementById
else { document.getElementById('jieGuoInput').value = document.getElementById('jieGuoInput else { document.getElementById('jieGuoInput').value = document.getElementById('jieGuoInput else { document.getElementById('jieGuoInput').value = document.getElementById('jieGuoInput else { document.getElementById('jieGuoInput').value = document.getElementById('jieGuoInput else { document.getElementById('jieGuoInput').value = document.getElementById('jieGuoInput
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('d1').style.left=0+"%"; document.getElementById('d1').style.right=88+"%"; document.getElementById function mv2() { document.getElementById('d1').style.left=88+"%"; document.getElementById ('d1').style.right=0+"%"; document.getElementById('d1').style.top=0+"%"; document.getElementById ('d1').style.top=76+"%"; document.getElementById('d1').style.bottom=0+"%"; document.getElementById ('d1').style.left=0+"%"; document.getElementById('d1').style.top=76+"%"; document.getElementById
("name").value; a.old = document.getElementById("old").value; a.sex = document.getElementById ("uname").value = a.name; document.getElementById("uold").value = a.old; document.getElementById ("usex").value = a.sex; document.getElementById("uarea").value = a.area; document.getElementById ("name").value; a.old = document.getElementById("old").value; a.sex = document.getElementById ("uname").value = a.name; document.getElementById("uold").value = a.old; document.getElementById
').value = cacheInfo.maximumSizeInBytes; document.getElementById('apply').addEventListener('click ').value = cacheInfo.numberOfImagesCached; }); let imageNum = 2; document.getElementById = document.getElementById('area-bottom').value; viewport.displayedArea.rowPixelSpacing = document.getElementById document.getElementById('test-image').textContent = ""; document.getElementById('test-pState' document.getElementById('area-top').value = viewport.displayedArea.tlhc.y; document.getElementById
//第一个参数为函数,第二个为毫秒数,经过指定的毫秒数来执行一次传入的函数 i++; //这是计时器秒数分钟数和小时的基准“i” document.getElementById( ("sec").innerHTML = "00"; document.getElementById("min").innerHTML = "00"; document.getElementById ("hour").innerHTML = "00"; document.getElementById("btn").innerHTML = "开始计时"; //重置之后将btn的标签内容设置为“ 开始” }; document.getElementById("btn").onclick = function () { //当id为btn的按钮被点击时,执行以下函数 if isRunning) { document.getElementById("btn").className = "btn btn-info"; document.getElementById
("username_msg").innerHTML = ""; } else { document.getElementById("username_msg ("repassword").value if(password.length >= 6) { document.getElementById( ("email_msg").innerHTML = ""; } else { document.getElementById("email_msg ("name").value; if(usr.length >= 5) { document.getElementById("name_msg") .innerHTML = ""; } else { document.getElementById("name_msg").innerHTML =
("ctl00_MainContent_txt_XH").InnerText = GetDate(); 61 webBrowser1.Document.GetElementById ("ctl00_MainContent_txt_ZRRQM").InnerText = "小李"; 63 webBrowser1.Document.GetElementById ("ctl00_MainContent_txt_XKSMC").InnerText = "消防控制室"; 64 webBrowser1.Document.GetElementById ("txtUserName").InnerText = "admin";//登陆用户名 211 webBrowser1.Document.GetElementById(" ("txtUserName").InnerText = "admin";//登陆用户名 276 webBrowser1.Document.GetElementById("
('space').value=document.getElementById('space').value.Trim();document.getElementById('space').select ();"> <input type="button" value="去前空格" onclick="javascript:document.<em>getElementById</em>('space').value =document.<em>getElementById</em>('space').value.LTrim();document.<em>getElementById</em>('space').select();"> <input type="button" value="去后空格" onclick="javascript:document.<em>getElementById</em>('space').value=document.<em>getElementById</em> " onclick="javascript:document.<em>getElementById</em>('space').value=' 前后都是空格 ';"> <a href="http://
-- 第一种情况 --> <script> var out = document.getElementById('out'); var middle = document.getElementById -- 第二种情况 --> <script> var out = document.getElementById('out'); var middle = document.getElementById -- 第三种情况 --> <script> var out = document.getElementById('out'); var middle = document.getElementById -- 第四种情况 --> <script> var out = document.getElementById('out'); var middle = document.getElementById -- 第五种情况 --> <script> var out = document.getElementById('out'); var middle = document.getElementById
("t1").insertBefore(b1,document.getElementById("d1")); // 将b1节点添加到t1节点内的d1节点前 </script> 替换节点 ("t5").childNodes); // 获取所有子节点 // 注意每个换行也会有一个#text文本节点 console.log(document.getElementById("t5 ").childElementCount); // 获取子节点数量 console.log( document.getElementById("t5").firstChild); // 获取第一个子节点,注意也会匹配#text console.log(document.getElementById("t5").firstElementChild); // 获取第一个子节点 console.log(document.getElementById("t7").nextElementSibling); // 不匹配文本节点、注释节点 </script> 代码示例 <!
("myH").innerHTML = "JavaScript 注释"; // 改变段落: document.getElementById("myP").innerHTML = "我的第一个段落。" ("myH").innerHTML = "JavaScript 注释"; document.getElementById("myP").innerHTML = "我的第一个段落。" ("myH").innerHTML = "我的首页"; document.getElementById("myP").innerHTML = "我的第一个段落。" ("myH").innerHTML = "欢迎访问我的首页"; document.getElementById("myP").innerHTML = "这是我的第一个段落。" ; */ document.getElementById("myP").innerHTML = "注释块不会被执行。"
给获取到的元素⼀些内容,document.getElementById(‘id名’).innerHTML=‘内容’。 <! ("tim").innerHTML="这里是被注入的内容" //document.getElementById('tim').innerText='这里是被注入的内容' </script console.log("鼠标移出") } //onchange 元素值改变,⼀般⽤在表单元素上 document.getElementById("xd ("tim").style.height="300px" } document.getElementById("longer").onclick=function(){ document.getElementById("changebg").onclick=function(){ // 获取ID为tim的div document.getElementById
-- /* a typical value is that document.getElementById("province").options[1]="河北", document.getElementById ("province").selectedIndex+document.getElementById("province").value+document.getElementById("province ").options[document.getElementById("province").selectedIndex].text+document.getElementById("province" ).options[document.getElementById("province").selectedIndex].value); document.getElementById ("city").add(opt,document.getElementById("city").options.length);//第二个参数指定元素放置所在的索引号 } //
<html> <body> <script> function show(){ document.getElementById("div").style.display=""; //alert(document.getElementById ("div").style.display) } function hidden(){ document.getElementById("div").style.display="none"; //alert (document.getElementById("div").style.display) } </script> <BODY> <input name="name" type="button" onClick ("typediv1").style.visibility="hidden";//隐藏 document.getElementById("typediv1").style.visibility="visible ";//显示 通过设置display属性可以使div隐藏后释放占用的页面空间,如下 style="display: none;" document.getElementById("typediv1").
('printImg3').style.display = "block"; document.getElementById('barchart1').style.display = " none"; setTimeout(function() { var myChart1 = echarts.init(document.getElementById ('linechart1').style.display = "none"; document.getElementById('printImg1').style.display myChart2.setOption(option); var img2 = document.getElementById('printImg2'); = "none"; document.getElementById('linechart2').style.display = "block"; document.getElementById
document.getElementById("numStr").innerHTML = isNaN("10"); 35 document.getElementById("str"). document.getElementById("strNum").innerHTML = parseInt("hello123"); // 第一个非空字符非数字返回NaN 46 document.getElementById document.getElementById("nullNum").innerHTML = parseInt(" 10"); // 去掉前面的空格返回数值 56 document.getElementById document.getElementById("rNull").innerHTML = parseFloat(null); // null返回NaN 48 document.getElementById document.getElementById("num3").innerHTML = n3.toString(); // 八进制整数转字符串,会先转换成十进制 55 document.getElementById
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