老师检查作业

来源：3-10 编程练习

3颗猫饼干

2021-09-14 16:36:32

相关代码：

<!DOCTYPE html>
<html>
<head>
    <meta charset="UTF-8">
    <title>splice</title>
</head>
<body>
<script>
        var num = [];
        var input 
        while (input != -1) {
            input = prompt('请输入任意你想输入的字符')
            num.push(input)
        }
        num.pop()
        num.splice(0,2,'hello')
        document.write(num)
</script>
</body>
</html>