JS 参考手册

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JavaScript

JS Array JS Boolean JS Classes JS Date JS Error JS Global JS JSON JS Math JS Number JS 运算符 JS RegExp JS 语句 JS String

HTML DOM

DOM Attributes DOM Document DOM Element DOM Events DOM Event 对象 DOM HTMLCollection DOM Location DOM Navigator DOM Screen DOM Style
alignContent alignItems alignSelf animation animationDelay animationDirection animationDuration animationFillMode animationIterationCount animationName animationTimingFunction animationPlayState background backgroundAttachment backgroundColor backgroundImage backgroundPosition backgroundRepeat backgroundClip backgroundOrigin 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 cursor direction display emptyCells filter flex flexBasis flexDirection flexFlow flexGrow flexShrink flexWrap cssFloat 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
DOM Window

Web APIs

API Console API Geolocation API History API Storage

HTML 对象

<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> <style> <sub> <summary> <sup> <table> <tbody> <td> <tfoot> <th> <thead> <tr> <textarea> <time> <title> <track> <u> <ul> <var> <video>

其他参考手册

CSSStyleDeclaration JS 类型转换


MouseEvent clientY 属性

❮ DOM 事件 ❮ MouseEvent

实例

在元素上单击鼠标按钮时输出鼠标指针的坐标:

var x = event.clientX;     // 获取水平坐标
var y = event.clientY;     // 获取垂直坐标
var coor = "X coords: " + x + ", Y coords: " + y;

The result of coor could be:

X coords: 142, Y coords: 99
亲自试一试 »

页面下方有更多实例。


定义和用法

当鼠标事件被触发时,clientY 属性返回鼠标指针的垂直坐标(根据客户端区域)。

客户端区域是当前窗口。

提示:如需获取鼠标指针的水平坐标(根据客户端区域),请使用 clientX 属性

注释:该属性是只读的。


浏览器支持

属性
clientY Yes Yes Yes Yes Yes


语法

event.clientY

技术细节

返回值: 数字值,表示鼠标指针的垂直坐标,以像素计。
DOM 版本: DOM Level 2 Events

更多实例

实例

当鼠标指针在元素上移动时输出鼠标指针的坐标:

var x = event.clientX;
var y = event.clientY; 
var coor = "X coords: " + x + ", Y coords: " + y;
document.getElementById("demo").innerHTML = coor;
亲自试一试 »

实例

演示 clientX 与 clientY 以及 screenX 与 screenY 之间的区别:

var cX = event.clientX;
var sX = event.screenX;
var cY = event.clientY;
var sY = event.screenY;
var coords1 = "client - X: " + cX + ", Y coords: " + cY;
var coords2 = "screen - X: " + sX + ", Y coords: " + sY;
亲自试一试 »

相关页面

HTML DOM 参考手册: MouseEvent clientX 属性

HTML DOM 参考手册: MouseEvent screenX 属性

HTML DOM 参考手册: MouseEvent screenY 属性

HTML DOM 参考手册: MouseEvent offsetX 属性

HTML DOM 参考手册: MouseEvent offsetY 属性


❮ DOM 事件 ❮ MouseEvent