JS——鼠标事件

• onclick 单击事件（相继触发mousedown与mouseup事件）
• ondblclick：双击
• onmousedown 鼠标按下事件
• onmouseup 鼠标抬起事件
• onmousemove 鼠标移动事件
• onmouseout 鼠标移出事件
• onmouseover 鼠标指针移动到元素（被选元素或其子元素）上时触发常与onmouseout一起用
• onmouseenter 只有在鼠标指针穿过被选元素时，才会触发，常与onmouseleave一起使用
• onmouseleave 鼠标移出事件

<button onclick="myClick()">鼠标单击</button>
<button ondblclick="myDBClick()">鼠标双击</button>
<button onmousedown="myMouseDown()" onmouseup="myMouseUp()">鼠标按下和抬起</button>
<button onmouseover="myMouseOver()" onmouseout="myMouseOut()">鼠标悬浮和离开</button>
<button onmousemove="myMouseMove()">鼠标移动</button>
<button onmouseenter="myMouseEnter()" onmouseleave="myMouseLeave()">鼠标进入和离开</button>
<script>
    function myClick() {
        console.log("你单击了按钮！");
    }
    function myDBClick() {
        console.log("你双击了按钮！");
    }
    function myMouseDown() {
        console.log("鼠标按下了！");
    }
    function myMouseUp() {
        console.log("鼠标抬起了！");
    }
    function myMouseOver() {
        console.log("鼠标悬浮！");
    }
    function myMouseOut() {
        console.log("鼠标离开！")
    }
    function myMouseMove() {
        console.log("鼠标移动！")
    }
    function myMouseEnter() {
        console.log("鼠标进入！")
    }
    function myMouseLeave() {
        console.log("鼠标离开！")
    }
</script>