MouseEvent.movementY

MouseEvent.movementY 是只读属性，它提供了当前事件和上一个 mousemove (en-US) 事件之间鼠标在水平方向上的移动值。换句话说，这个值是这样计算的 :currentEvent.movementY = currentEvent.screenY - previousEvent.screenY.

语法

var yShift = instanceOfMouseEvent.movementY

返回值

A number

规范

Specification Status Comment
Pointer Lock
MouseEvent.movementY		 Candidate Recommendation Initial definition.

浏览器兼容性

We're converting our compatibility data into a machine-readable JSON format. This compatibility table still uses the old format, because we haven't yet converted the data it contains. Find out how you can help! (en-US)

Feature Chrome Edge Firefox (Gecko) Internet Explorer Opera Safari
Basic support 22.0 webkit (en-US)
37.0 unprefixed		 (Yes) 1.0 (1.7 or earlier) moz (en-US)
41 (41)		 未实现 ? 未实现
Feature Android Webview Edge Firefox Mobile (Gecko) IE Mobile Opera Mobile Safari Mobile Chrome for Android
Basic support 37.0 (Yes) 1.0 (1.0) moz (en-US)
41.0 (41)		 ? ? ? (Yes) webkit (en-US)
37.0 unprefixed

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