lovecoding
/
Web1020


			
				
					
						
						
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							<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>
        div{
            width: 200px;
            height: 100px;
            background-color: red;
        }
    </style>
</head>
<body>
    <div>按钮</div>
    <script>
        // var arr = [1];
        // var a = 1 + arr[0];
        // var oBtn = document.getElementsByTagName("div");
        // oBtn = oBtn[0];
        var oBtn = document.getElementsByTagName("div")[0];
        // console.log(oBtn);
        // 鼠标点击 左键
        // oBtn.onclick = function(){
        //     console.log("hello world");
        // }
        // 鼠标右键
        // oBtn.oncontextmenu = function(){

        // }
        // 鼠标移动
        // oBtn.onmousemove = function(){
        //     console.log("onmousemove")
        // }

        // 鼠标移入
        oBtn.onmouseover = function(e){
            console.log("onmouseover");
            console.log(e);
            console.log(this);
        }

        var obj = {
            name: "张三",
            age: 18,
            talk:function(){
                console.log(obj.name);
                console.log(this.name);
            }
        }
        obj.talk();

    </script>
</body>
</html>