const names = ["代宏宇", "任浩宇", "赵锐节", "卢瑞", "陈雅淇", "陈乐", "胡蕴华"]; let isRolling = false; let interval; const nameDisplay = document.getElementById('name - display'); const startStopButton = document.getElementById('start - stop - button'); const speedSlider = document.getElementById('speed - slider'); function startRolling() { const speed = 1000 / speedSlider.value; interval = setInterval(() => { const randomIndex = Math.floor(Math.random() * names.length); nameDisplay.text