【JS】setInterval函数

Osinghong1天前成果展示13

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>d24c04429</title>
</head>
<body>
    <p>点击按钮，等待3秒可以弹出hello！点击弹出框的确定后，三秒后将会循环。</p>
    <button onclick="myFunction()">点击我</button>
    <script>
        var myVar;
        function myFunction() {
            myVar = setInterval(alertFunc, 3000);
        }
        function alertFunc(){
            alert("Hello!");
        }
    </script>
</body>
</html>

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