时间函数
1 //封装得到时间的函数 2 function getTime() { 3 // 得到时间戳之差 4 let now = +new Date() 5 let after = +new Date('2023-4-20 00:00:00') 6 //得到秒数的时间差 7 let count = (after - now)/1000 8 // 转换为时分秒 9 let h = parseInt(count / 60 / 60 % 24) 10 h = h < 10 ? '0' + h : h 11 let m = parseInt(count / 60 % 60) 12 m = m <10 ? '0' + m : m 13 let s = parseInt(count % 60) 14 s = s < 10 ? '0' + s : s 15 console.log(h,m,s); 16 // 写入 要存放的标签对象 17 const hour = document.querySelector('#hour') 18 const minutes = document.querySelector('#minutes ') 19 const scond = document.querySelector('#scond') 20 21 hour.innerHTML = h 22 minutes.innerHTML = m 23 scond.innerHTML = s 24 }
解释:将 时、分、秒读出并输入到相应标签内