Html部分
<!DOCTYPE html>
<html><head><meta charset="utf-8" /><title></title><link rel="stylesheet" type="text/css" href="css/index.css" /><script src="js/index.js" type="text/javascript" charset="utf-8"></script></head><body><div id="box"><p>例如 : 2022-8-4 12:00:00</p><span>请输入时间 : </span><input type="text" id="mytime" placeholder="例如 : 2021-8-4 12:00:00"/><br><button type="button" οnclick="panduan()">判断</button><div id="result"></div></div></body>
</html>
Css部分
* {margin: 0;padding: 0;
}#box {width: 30%;height: 300px;margin: 100px auto;border: solid 1px #ccc;padding-top: 100px;
}#mytime {height: 30px;margin-top: 30px;
}#box button {width: 40px;height: 30px;margin-top: 10px;
}
#box div{margin: 20px auto;text-align: center;
}
p,span,button{margin-left: 25%;
}
Js部分
function panduan() {var result = document.getElementById('result');var mytime = new Date(document.getElementById('mytime').value);// 获取当前日期var date = new Date();var day, hour, minute, second, interval;// 计算相差几天的算法interval = mytime - date;interval /= 1000;day = Math.round(interval / 60 / 60 / 24);hour = Math.round(interval / 60 / 60 % 24);minute = Math.round(interval / 60 % 60);second = Math.round(interval % 60);// 页面显示结果result.innerHTML = day + "天" + hour + "时" + minute + "分" + second + "秒";
}
