代码如下： <!--第一步：把如下代码加入<body>区域中--> <script language="JavaScript"> <!-- Begin var timerRunning = false; var timezone = "这是格林尼治标准时间"; var adjust = 0; function timeCheck(tzone, diff) { if (timerRunning) { clearTimeout(updatetime); timerRunning = false; } gmtOffset=eval(diff+adjust); timezone = tzone; checkDateTime(); } function checkDateTime () { var today = new Date(); var year = today.getYear() + 00; var month = today.getMonth()+1; var date = today.getDate(); var day = today.getDay(); var hour = today.getHours(); var minute = today.getMinutes(); var second = today.getSeconds(); var lastSat = date - (day+1); while (lastSat < 32) lastSat+=7; if (lastSat > 31) lastSat+=-7; var firstSat = date - (day+1); while (firstSat > 0) firstSat+=-7; if (firstSat < 1) firstSat+=7; if ((((month == 4) && (date >= firstSat)) || month > 4) && (month < 11 || ((month == 10) && day <= lastSat))) adjust += 60; yourOffset = (new Date()).getTimezoneOffset(); yourOffset = yourOffset + adjust; var xx = navigator.appName var xy = navigator.appVersion; xy = xy.substring(0,1); if ((xy == 4) && (xx == "Netscape")) yourOffset = yourOffset+adjust; if ((((month == 4) && (date > 20)) || month > 4) && (month < 11 || ((month == 10) && day < 30))) adjust -= 60; ourDifference = eval(gmtOffset - yourOffset); var half = eval(ourDifference % 60); ourDifference = Math.round(ourDifference / 60); hour = eval(hour - ourDifference); var m = new Array("", "1","2","3", "4","5","6", "7","8","9", "10","11","12"); var leap = eval(year % 4); if ((half == -30) || (half == 30)) minute += 30; if (minute > 59) minute -= 60, hour++; if (minute < 0) minute += 60, hour--; if (hour > 23) hour -= 24, date += 1; if (((month == 4) || (month == 6) || (month == 9) || (month == 11)) && (date==31)) date = 1, month ++; if (((month == 2) && (date > 28)) && (leap != 0)) date = 1, month ++; if ((month == 2) && (date > 29)) date = 1, month++; if (hour < 0) hour += 24, date --; if ((date == 32) && (month == 12)) month = m[1], date = 1, year++; if (date == 32) date = 1, month++; if ((date < 1) && (month == 1)) month= m[12], date = 31, year--; if (date < 1) date = 31, month --; if (((month == 4) || (month == 6) || (month== 9) || (month == 11)) && (date == 31)) date = 30; if ((month == 2) && (date > 28)) date = 29; if (((month == 2) && (date > 28)) && (leap != 0)) date=28; for (i=1; i<13; i++) { if (month == i) { month = m[i]; break; } } var dateTime = hour; dateTime = ((dateTime < 10) ? "0":"") + dateTime; dateTime = " " + dateTime; dateTime += ((minute < 10) ? ":0" : ":") + minute; dateTime += ((second < 10) ? ":0" : ":") + second; dateTime += (hour >= 12) ? "下午, " : "上午, "; dateTime += year + "年" + month + "月" + date + "日" ; document.clock.zonetime.value = dateTime; document.clock.zonename.value = timezone; updatetime=setTimeout("checkDateTime()", 900); timerRunning = true; } // End --> </script> <br> <form name=clock> <table border=1 cellpadding=0 cellspacing="0"> <tr> <td align=center colspan="3"> <input type=text name=zonetime size=28> </td> </tr> <tr> <td align=center colspan="3"> 地区：<input type=text name=zonename size=20> </td> </tr> <tr> <td align=center> <input type=button value="太平洋" onClick="timeCheck(this.value, +480)" name="button3"> </td> <td align=center> <input type=button value="中 心" onClick="timeCheck(this.value, +420)" name="button2"> </td> <td align=center> <input type=button value="东 方" onClick="timeCheck(this.value, +300)" name="button1"> </td> </tr> <tr> <td align=center> <input type=button value="夏威夷" onClick="timeCheck(this.value, +600)" name="button"> </td> <td align=center> <input type=button value="墨西哥" onClick="timeCheck(this.value, +360)" name="button"> </td> <td align=center> <input type=button value="新德里" onClick="timeCheck(this.value, -330)" name="button"> </td> </tr> <tr> <td align=center> <input type=button value="北 京" onClick="timeCheck(this.value, -420)" name="button"> </td> <td align=center> <input type=button value="东 京" onClick="timeCheck(this.value, -540)" name="button"> </td> <td align=center> <input type=button value="伦 敦" onClick="timeCheck(this.value, +0)" name="button"> </td> </tr> </table> </form> <!--第二步：把<body>区域改为--> <body bgcolor="#fef4d9" OnLoad="timeCheck(timezone, 0)">
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