HTML d5fd7aea971a85678ba271703566ebfd value属性是什么
定义和用法
value 属性规定 d5fd7aea971a85678ba271703566ebfd 元素的值。
value 属性对于不同 input 类型,用法也不同:
对于 "button"、"reset"、"submit" 类型 - 定义按钮上的文本
对于 "text"、"password"、"hidden" 类型 - 定义输入字段的初始(默认)值
对于 "checkbox"、"radio"、"image" 类型 - 定义与 input 元素相关的值,当提交表单时该值会发送到表单的 action URL。
注意:value 属性对于 514d05be645eb7d51e331036aaf6fa36 和 5531b4c9ceb3f990b641fa70a3e40caa 是必需的。
注意:value 属性不适用于 a2dc5349fb8bb852eaec4b6390c03b14。
HTML 4.01 与 HTML5之间的差异
无。
语法
<input value="text">
属性值
值
text 规定 d5fd7aea971a85678ba271703566ebfd 元素的值。
实例
带有初始(默认)值的 HTML 表单:
<form action="demo_form.php"> First name: <input type="text" name="fname" value="John"><br> Last name: <input type="text" name="lname" value="Doe"><br> <input type="submit" value="提交表单">
运行效果:
所有主流浏览器都支持 value 属性。
推荐:《HTML视频教程》

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