当用户把鼠标移到DOM元素上时，指令将该元素的背景设置为一个高亮颜色。
The directive sets the background to a highlight color when the user mouses over the DOM element to which it is applied.
当用户把鼠标移到DOM元素上时，指令将该元素的背景设置为一个高亮颜色。
The directive sets the background to a highlight color when the user mouses over the DOM element to which it is applied.
应用推荐