Question

jquery选项卡自动切换时间怎么调

// JavaScript Document

var tablink_idname = new Array("tablink")
var tabcontent_idname = new Array("tabcontent")
var tabcount = new Array("3")
var loadtabs = new Array("1")
var autochangemenu = 1;
var changespeed = 3;
var stoponhover = 0;
function easytabs(menunr, active) {
if (menunr == autochangemenu){currenttab=active;
}if ((menunr == autochangemenu)&&(stoponhover==1)) {stop_autochange()}
else if ((menunr == autochangemenu)&&(stoponhover==0)) {counter=0;}menunr = menunr-1;
for (i=1; i <= tabcount[menunr]; i++){document.getElementById(tablink_idname[menunr]+i).className='tab'+i;document.getElementById(tabcontent_idname[menunr]+i).style.display = 'none';}document.getElementById(tablink_idname[menunr]+active).className='tab'+active+' tabactive';document.getElementById(tabcontent_idname[menunr]+active).style.display = 'block';}
var timer; counter=0;
var totaltabs=tabcount[autochangemenu-1];
var currenttab=loadtabs[autochangemenu-1];
function start_autochange(){counter=counter+1;
timer=setTimeout("start_autochange()",1000);
if (counter == changespeed+1) {currenttab++;
if (currenttab>totaltabs) {currenttab=1}easytabs(autochangemenu,currenttab);restart_autochange();}}
function restart_autochange(){clearTimeout(timer);counter=0;start_autochange();}
function stop_autochange(){clearTimeout(timer);counter=0;}
window.onload=function(){
var menucount=loadtabs.length;
var a = 0;
var b = 1;
do {easytabs(b, loadtabs[a]);
a++; b++;}while (b<=menucount);
if (autochangemenu!=0){start_autochange();}
}

Answer 1

timer=setTimeout("start_autochange()",1000);

第二个参数表示延迟执行的时间，单位为毫秒，1000表示为延迟1秒执行

追问

如果要改成不自动跳转呢，怎么改？

追答

clearTimeout(timer)
添加上面这句就行了，清除延迟执行事件

js还提供一种连续间隔执行的方法，setInterval(函数名称,间隔时间)，会隔断时间自动执行，不限次数