<!DOCTYPE html>
<html lang="en">
    <head>
        <meta charset="UTF-8">
    </head>
    <body>

        <script>
            const _getUniqueNums = (start,end,n) => {
                // 补全代码
                let arr = [];
                for(let i = 0; i < n; i++) {
                    let num = Math.floor(Math.random()*end)+start;
                    if (!arr.includes(num)) {
                        arr.push(num)
                    }
                }
                return arr;
            }
        </script>
    </body>
</html>