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我想知道如何完全按照这个演示做，但也可以用 seconds。

var start = document.getElementById("start").value;
var end = document.getElementById("end").value;

function diff(start, end) {
    start = start.split(":");
    end = end.split(":");
    var startDate = new Date(0, 0, 0, start[0], start[1], 0);
    var endDate = new Date(0, 0, 0, end[0], end[1], 0);
    var diff = endDate.getTime() - startDate.getTime();
    var hours = Math.floor(diff / 1000 / 60 / 60);
    diff -= hours * 1000 * 60 * 60;
    var minutes = Math.floor(diff / 1000 / 60);

    return (hours < 9 ? "0" : "") + hours + ":" + (minutes < 9 ? "0" : "") + minutes;
}

document.getElementById("diff").value = diff(start, end);

演示：http: //jsfiddle.net/KQQqp/

请帮忙！

非常感谢！

4

1 回答 1

1

尝试

var start = document.getElementById("start").value;
var end = document.getElementById("end").value;

function diff(start, end) {
    start = start.split(":");
    end = end.split(":");
    var startDate = new Date(0, 0, 0, start[0], start[1], start[2] || 0);
    var endDate = new Date(0, 0, 0, end[0], end[1], end[2] || 0);
    var diff = endDate.getTime() - startDate.getTime();
    var hours = Math.floor(diff / 1000 / 60 / 60);
    diff -= hours * 1000 * 60 * 60;
    var minutes = Math.floor(diff / 1000 / 60);
    diff -= minutes * 1000 * 60;
    var seconds = Math.floor(diff / 1000);

    return (hours < 9 ? "0" : "") + hours + ":" + (minutes < 9 ? "0" : "") + minutes + ":" + (seconds < 9 ? "0" : "") + seconds;
}

document.getElementById("diff").value = diff(start, end);

演示：小提琴

于 2013-06-17T03:14:26.147 回答