MouseEvent.movementY - Web API 接口参考 编辑

MouseEvent.movementY 是只读属性，它提供了当前事件和上一个 mousemove 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!

• Desktop
• Mobile

Feature	Chrome	Edge	Firefox (Gecko)	Internet Explorer	Opera	Safari
Basic support	22.0 webkit 37.0 unprefixed	(Yes)	1.0 (1.7 or earlier) moz 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 41.0 (41)	?	?	?	(Yes) webkit 37.0 unprefixed

相关

• MouseEvent
• Pointer Lock