<form action="/action_page.php"> <label for="fname">First name:</label> <input type="text" id="fname" name="fname"><br><br> <label for="lname">Last name:</label> <input type="text" id="lname" name="lname"><br><br> <input type="submit" value="Submit"> </form> ...
alertDefaultValue() { alert(document.getElementById('txt1').defaultValue); } </script> </head> <body> <textarea id="txt1"> Hello world...This is a text area </textarea> <br /> <input type="button" onclick="alertDefaultValue()" value="Alert default value" /> </body> </html>...
<formaction="/action_page.php"> <labelfor="fname">First name:</label><br> <inputtype="text"id="fname"name="fname"value="John"><br> <labelfor="lname">Last name:</label><br> <inputtype="text"id="lname"name="lname"value="Doe"><br><br> ...
<inputtype="submit"value="上传"><inputtype="reset"value="清除"> </form> 上面代码中,输入用户名Larry,选中一个file1.txt文件,然后点击“上传”。浏览器发送的实际数据如下。 Content-Type: multipart/form-data; boundary=--AaB03x --AaB03x Content-Disposition: form...
length; j++) { if (input[j].selected) { values[input.name].push(input[j].value); } } break; default: values[input.name] = input.value; break; } } } return values; } $form.addEventListener('submit', function(event) { event.preventDefault(); getFormValues(event.target); console....
<input type="text" id="Mobile" class="form-control" placeholder="请输入手机号码,此手机号将作为登录账号" isvalid="yes" checkexpession="NotNull"onblur="value = value.length < 11 ? '':value"onkeyup="value = value.replace(/[^\d]/g,''); value = (value.length > 11)? value.substr...
tr> <tr align="center"> <td colspan="4"> <input type="Submit" name="AddButton" value="Add" onserverclick="AddButton_Click" runat="server"/> <input type="Reset" name="AddButton" value="Reset" runat="server"/> </td> <td> </td> </tr> </table> </form> </body> </html> ...
<input type="text"name="..."size="..."maxlength="..."value="..."> 属性解释如下: type=”text”:定义单行文本输入框; name:定义文本框名称; 要保证数据的准确采集,必须定义一个独一无二的名称; size:定义文本框的宽度,单位是单个字符宽度; ...
Learn about the HTMLInputElement interface, including its properties and methods, specifications and browser compatibility.
button></div></form></body></html> 结果: input中的常用属性.gif input中的校验 一些伪类可用于设置表单元素的样式,以帮助用户查看其值是有效还是无效。即:valid(有效)和:invalid(无效)。 <!DOCTYPE html><html><head><title>input中type为text</title><styletype="text/css">div {...