Test.js
function clock() { var time = new Date(); var hour = time.getHours(); var minute = time.getMinutes(); var second = time.getSeconds(); var welcomeStr = ""; if(hour > 0 && hour < 12) { welcomeStr = "早上好"; } else { welcomeStr = "下午好"; } hour = hour > 10 ? hour : ("0" + hour); minute = minute > 10 ? minute : ("0" + minute); second = minute > 10 ? second : ("0" + second); document.form1.myClock.value = ("现在是" + hour + "时" + minute + "分" + second + "秒"); setTimeout("clock()", 10); }