& ltbody & gt
& lt輸入?type="text "?id= "時鐘"?size="30 "?/& gt;
& lt跨度?id?=?“地位”?/& gt;
& lt劇本?language = javascript & gt
var?sec?=?5;
var?int=setInterval("clock()",1000)
功能?時鐘()
{
document.getElementById("clock ")。價值?=?"倒計時:"+秒;
如果(秒?==?0){
clear interval(int);
document . getelementbyid(" status ")。innerHTML?=?“遊戲?結束”;?
}
否則{
sec?=?sec-1;
}
}
& lt/script & gt;
& lt/body & gt;
& lt/html & gt;