获取checkbox是否选中: $("#checkbox").is(":checked"); 获得的值为true或false。 设置checkbox是否选中: $("#checkbox").attr("checked",true);//设置为选中状态$("#checkbox").attr("checked",false);//设置为未选中状态
checkboxObject.checked = true|false Property Values ValueDescription true|falseSpecifies whether a checkbox should be checked or not. true - The checkbox is checked false - Default. The checkbox is not checked Technical Details Return Value:A Boolean, returns true if the checkbox is checked, and...
判断HTML中的checkbox是否被选中 //合法性验证 function checkValidity() { var userNameCheck = $("#userNameCheck").attr('checked'); var dateCheck = $("#dateCheck").attr('checked'); var descCheck = $("#descCheck").attr('checked'); if (!userNameCheck && !dateCheck && !descCheck) { al...
<input type="checkbox" name="ball" value="basketball" id="1" checked="checked"/><label for="1">篮球</label> <input type="checkbox" name="ball" value="football" id="2"/><label for="2">足球</label> <input type="checkbox" name="ball" value="volleyball" id="3"/><label for="...
Find out if the checkbox is checked by default:var x = document.getElementById("myCheck").defaultChecked; Try it Yourself » DescriptionThe defaultChecked property returns the default value of the checked attribute.This property returns true if the checkbox is checked by default, otherwise it ...
Open the Installed tab, find the HTML Tools plugin, and select the checkbox next to the plugin name. HTML specification is configurable with the Default HTML language level preference on the Languages & Frameworks | Schemas and DTDs settings page CtrlAlt0S. By default, specification HTML 5.0 ...
注意更改复选框的indeterminate属性,不会自动更改其checked值。 本例创建选中或取消选中一组子复选框控件(选项 1-4)的“全选”""复选框。 HTML <fieldsetclass="controlGroup verticalStacking"><legendclass="controlGroupName">Choose an option:</legend><label><inputtype="checkbox"id="selectAll"onclick="...
:<input type="checkbox" name="。。。"/>。。。<br> 7、checked属性 :单选或多选的默认选项。配合单选框、多选框使用。多选框可以多个选项具有该属性。不想默认不添加该属性即可。 注:属性的先后顺序为:type – name -checked 。 婚姻状况:<br> <!-- ...
Open the Installed tab, find the HTML Tools plugin, and select the checkbox next to the plugin name. HTML specification is configurable with the Default HTML language level preference on the Languages & Frameworks | Schemas and DTDs settings page CtrlAlt0S. By default, specification HTML 5.0 ...
字段中的字符会被遮蔽 radio 定义单选按钮 checkbox 定义复选框按钮 range 定义带有 slider 控件的数字字段 reset 定义重置按钮。重置按钮会将所有表单字段重置为初始值 search 定义用于搜索的文本字段 submit 定义提交按钮。提交按钮向服务器发送数据 text 默认。定义单行输入字段,用户可在其中输入文本。默认是 20 个...