❮ Input Text Object Example Change the default value of a text field: document.getElementById("myText").defaultValue="Goofy"; Try it Yourself » Description The defaultValue property sets or returns the default value of a text field. ...
<input type="text" id="example"> // Setup text field <script type="text/javascript"> document.getElementById("example").setAttribute('value','My default value'); </script> - Pepe Amoedo 37 应直接使用点符号访问value,请参考:https://developer.mozilla.org/en-US/docs/Web/API/Element.setA...
inputText.onclick=function(e) {//console.log(this);setCaretPosition(this, 0); };if(inputText.onpropertychange) { inputText.onpropertychange=function() { console.log(this.value);if(this.value.trim().length == 0) {this.value = "请输入用户名"; } }; }else{ inputText.addEventListener('...
textObject.value Set the value property: textObject.value =text Property Values ValueDescription textSpecifies the value of the input text field Technical Details Return Value:A String, representing the value of the text field More Examples
将以下代码添加到 render 方法中: JavaScript 复制 var $element = $(element); var $textbox1 = $('<input type="text" data-role="none"/>'); $element.append($textbox1); 备注 将textbox1 替换为自定义控件的名称,并将“text”替换为控件类型。获取...
DOCTYPEhtml><html><head><metacharset="UTF-8"><title>创建电子邮件</title></head><body><p>这是一个电子邮件链接:<ahref="mailto:someone@example.com?Subject=Hello%20again"target="_top">发送邮件</a></p><p><b>注意:</b>单词之间空格用%20代替,以确保浏览器能正常显示文本.</p></body><...
checkboxObject.value= text 属性值:它包含单个值文本,该文本用于指定与输入复选框字段关联的值。 返回值:它返回一个字符串值,该值表示输入复选框字段的value属性的值。 范例1:本示例返回“输入复选框”值属性。 <!DOCTYPE html><html><head><title>DOM Input CheckboxvalueProperty</title></head><bodystyle...
title></head><body><formid="form1"runat="server"><h3>HtmlInputReset Example</h3><asp:PlaceHolderid="PlaceHolder"runat="server"></asp:PlaceHolder><br/>Change the text in the input field and then click "Reset 1" or "Reset 2" to change it back to its initial value.</form></body><...
<p>年龄:<inputtype="text"name="age"></p> <p>性别:<inputtype="text"name="gender"></p> </fieldset> 上面代码中,这个控件组的标题会,嵌入显示在<fieldset>的上边框。 3、<label> <label>标签是一个行内元素,提供控件的文字说明,帮助用户理解控件的目的。
DragOver Occurs when the user drags text over the element. Focusing Occurs when the element first receives user input focus. GotFocus Occurs when the element has received user input focus. KeyDown Occurs when the user presses a key on the keyboard. KeyPress Occurs when the user presses and ...