HTML代碼如下：代碼1：functionshowTime(){vartoday=newDate();varhou=today.getHours();varmin=today.getMinutes();varsec=today.getSeconds();document.getElementsByName('time')[0].value=hou+':'+min+''+sec;}setInterval(showTime,1000);代碼2：functionshowTime(){vartoday=newDate();varhou=today.getHours();varmin=today.getMinutes();varsec=today.getSeconds();document.getElementsByName('time')[0].value=hou+':'+min+''+sec;}showTime();代碼2在html中不顯示我理解，從上到下執(zhí)行，input沒加載，不執(zhí)行正常，但代碼1多了個setInterval怎么就可以執(zhí)行了呢？input不是沒載入嗎？