我的网站上有两个倒计时器。一个计时器会自动启动,但下一个计时器只能在第一个计时器完成后启动。这应该永远循环,即从一个接一个的时钟开始。
以下是我尝试的代码:
function count() {
var startTime = document.getElementById('hms').innerHTML;
var pieces = startTime.split(":");
var time = new Date();
time.setHours(pieces[0]);
time.setMinutes(pieces[1]);
time.setSeconds(pieces[2]);
var timedif = new Date(time.valueOf() - 1000);
var newtime = timedif.toTimeString().split(" ")[0];
document.getElementById('hms').innerHTML = newtime;
if (newtime !== '00:00:00') {
setTimeout(count, 1000);
} else {
count1();
}
}
count();
function count1() {
var startTime = document.getElementById('hms1').innerHTML;
var pieces = startTime.split(":");
var time = new Date();
time.setHours();
time.setMinutes(pieces[1]);
time.setSeconds(pieces[2]);
var timedif = new Date(time.valueOf() - 1000);
var newtime = timedif.toTimeString().split(" ")[0];
document.getElementById('hms1').innerHTML = newtime;
if (newtime !== '00:00:00') {
setTimeout(count, 1000);
} else {
count();
}
}
HTML:
<div id="hms">00:00:10</div>
<div id="hms1">00:02:10</div>
我无法完成这项工作。帮助!
答案 0 :(得分:0)
count
应该开始超时以运行count1
,并且反过来:
initial_count = 5; // say 5 sec. count-down
initial_count1 = 7;
ic = initial_count;
function count() {
ic--
if (ic>=0)
setTimeout(count, 1000); // refresh every 1sec.
else {
ic = initial_count1;
count1();
}
}
function count1() {
ic--
if (ic>=0)
setTimeout(count1, 1000); // refresh every 1sec.
else {
ic = initial_count;
count();
}
}
count(); // start the first alarm.
添加所有剩余的逻辑......
答案 1 :(得分:0)
function count() {
var startTime = document.getElementById('hms').innerHTML;
var pieces = startTime.split(":");
var time = new Date(); time.setHours(pieces[0]);
time.setMinutes(pieces[1]);
time.setSeconds(pieces[2]);
var timedif = new Date(time.valueOf() - 1000);
var newtime = timedif.toTimeString().split(" ")[0];
document.getElementById('hms').innerHTML=newtime;
if(newtime!=='00:00:00'){
setTimeout(count, 1000);
}else
{
count1();
}
}
count();
function count1() {
var startTime = document.getElementById('hms1').innerHTML;
var pieces = startTime.split(":");
var time = new Date(); time.setHours();
time.setMinutes(pieces[1]);
time.setSeconds(pieces[2]);
var timedif = new Date(time.valueOf() - 1000);
var newtime = timedif.toTimeString().split(" ")[0];
document.getElementById('hms1').innerHTML=newtime;
if(newtime!=='00:00:00' && newtime!=='00:00:01' ){
setTimeout(count, 1000);
}else
{
count();
}
}
count1();
答案 2 :(得分:0)
您当前的代码几乎就在那里 - 有几个小问题:
time.setHours
在第23行缺少参数,应如下所示:
var time = new Date(); time.setHours(pieces[0]);
第30行应调用备用函数:
setTimeout(count1, 1000);
一次只能运行一个计数器,因此无需最后一行(count1()
)。
这是一个updated JSBin。
但是,这里的DRY解决方案更适合避免必须管理两个功能:
var currentTimer = 'hms';
var alternateTimer = 'hms1';
function count() {
var timer = document.getElementById(currentTimer);
var startTime = timer.innerHTML;
var pieces = startTime.split(':');
var time = new Date();
time.setHours(pieces[0]);
time.setMinutes(pieces[1]);
time.setSeconds(pieces[2]);
var timedif = new Date(time.valueOf() - 1000);
var newtime = timedif.toTimeString().split(' ')[0];
// Update DOM
timer.innerHTML = newtime;
if(newtime === '00:00:00') {
// Swap the two timers
currentTimer = [alternateTimer, alternateTimer = currentTimer][0];
}
setTimeout(count, 1000);
}
count();
希望有所帮助!