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alignContent alignItems alignSelf animation animationDelay animationDirection animationDuration animationFillMode animationIterationCount animationName animationTimingFunction animationPlayState background backgroundAttachment backgroundClip backgroundColor backgroundImage backgroundOrigin backgroundPosition backgroundRepeat backgroundSize backfaceVisibility border borderBottom borderBottomColor borderBottomLeftRadius borderBottomRightRadius borderBottomStyle borderBottomWidth borderCollapse borderColor borderImage borderImageOutset borderImageRepeat borderImageSlice borderImageSource borderImageWidth borderLeft borderLeftColor borderLeftStyle borderLeftWidth borderRadius borderRight borderRightColor borderRightStyle borderRightWidth borderSpacing borderStyle borderTop borderTopColor borderTopLeftRadius borderTopRightRadius borderTopStyle borderTopWidth borderWidth bottom boxShadow boxSizing captionSide caretColor clear clip color columnCount columnFill columnGap columnRule columnRuleColor columnRuleStyle columnRuleWidth columns columnSpan columnWidth counterIncrement counterReset cssFloat cursor direction display emptyCells filter flex flexBasis flexDirection flexFlow flexGrow flexShrink flexWrap font fontFamily fontSize fontStyle fontVariant fontWeight fontSizeAdjust height isolation justifyContent left letterSpacing lineHeight listStyle listStyleImage listStylePosition listStyleType margin marginBottom marginLeft marginRight marginTop maxHeight maxWidth minHeight minWidth objectFit objectPosition opacity order orphans outline outlineColor outlineOffset outlineStyle outlineWidth overflow overflowX overflowY padding paddingBottom paddingLeft paddingRight paddingTop pageBreakAfter pageBreakBefore pageBreakInside perspective perspectiveOrigin position quotes resize right scrollBehavior tableLayout tabSize textAlign textAlignLast textDecoration textDecorationColor textDecorationLine textDecorationStyle textIndent textOverflow textShadow textTransform top transform transformOrigin transformStyle transition transitionProperty transitionDuration transitionTimingFunction transitionDelay unicodeBidi userSelect verticalAlign visibility width wordBreak wordSpacing wordWrap widows zIndex

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<a> <abbr> <address> <area> <article> <aside> <audio> <b> <base> <bdo> <blockquote> <body> <br> <button> <canvas> <caption> <cite> <code> <col> <colgroup> <datalist> <dd> <del> <details> <dfn> <dialog> <div> <dl> <dt> <em> <embed> <fieldset> <figcaption> <figure> <footer> <form> <head> <header> <h1> - <h6> <hr> <html> <i> <iframe> <img> <ins> <input> button <input> checkbox <input> color <input> date <input> datetime <input> datetime-local <input> email <input> file <input> hidden <input> image <input> month <input> number <input> password <input> radio <input> range <input> reset <input> search <input> submit <input> text <input> time <input> url <input> week <kbd> <label> <legend> <li> <link> <map> <mark> <menu> <menuitem> <meta> <meter> <nav> <object> <ol> <optgroup> <option> <output> <p> <param> <pre> <progress> <q> <s> <samp> <script> <section> <select> <small> <source> <span> <strong> <sub> <summary> <sup> <table> <tbody> <td> <tfoot> <th> <thead> <tr> <textarea> <time> <title> <track> <u> <ul> <var> <video>

Button formEnctype 属性


实例

返回表单数据在发送到服务器之前应该如何编码:

var x = document.getElementById("myBtn").formEnctype;
亲自试一试 »

定义和用法

formEnctype 属性设置或返回按钮的formenctype 属性的值。

formenctype 属性指定表单数据在发送到服务器之前应如何编码。 该属性覆盖表单的senctype 属性。

formenctype 属性仅用于 type="submit" 的按钮。

注释: formenctype 属性是 HTML5 中<button> 元素的新属性。


浏览器支持

属性
formEnctype Yes 10.0 Yes Yes Yes

语法

返回 formEnctype 属性:

buttonObject.formEnctype

设置 formEnctype 属性:

buttonObject.formEnctype = "application/x-www-form-urlencoded,multipart/form-data,text/plain"

属性值

描述
application/x-www-form-urlencoded 所有字符在发送前都经过编码(这是默认设置)
multipart/form-data 没有字符被编码。 当您使用具有文件上传控件的表单时,此值是必需的
text/plain 空格转换为 "+" 符号,但不编码特殊字符

技术细节

返回值: 字符串,表示用于向服务器提交表单的内容类型

更多实例

实例

将按钮的 formenctype 属性值从 "text/plain" 更改为 "application/x-www-form-urlencoded":

document.getElementById("myBtn").formEnctype = "application/x-www-form-urlencoded";
亲自试一试 »

实例

另一个返回 formEnctype 属性的例子:

var x = document.getElementById("myBtn").formEnctype;
亲自试一试 »

相关页面

HTML 参考手册: HTML<button> formenctype 属性


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