Javascript 以错误格式显示两次的日期是什么？_Javascript_Date_Countdown

Javascript 以错误格式显示两次的日期是什么？

javascript date

Javascript 以错误格式显示两次的日期是什么？,javascript,date,countdown,Javascript,Date,Countdown,这是我正在做的大学作业。我发现调整一下可以让约会不出现两次，但我的方式不可接受，这会让我损失分数。我需要更改日期的格式，确保它只显示一次年份，同时在书中保留相同的代码。任何指导都会有帮助 <html> <head> <meta charset="utf-8"> <title>Midwest Bridal Expo</title> <script> //this is to show

这是我正在做的大学作业。我发现调整一下可以让约会不出现两次，但我的方式不可接受，这会让我损失分数。我需要更改日期的格式，确保它只显示一次年份，同时在书中保留相同的代码。任何指导都会有帮助

<html>
  <head>
    <meta charset="utf-8"> 
    <title>Midwest Bridal Expo</title>
    <script>
      //this is to show a countdown to the bridal show
      function countDown() {
        var today = new Date()
        var dayofweek = today.toLocaleString()
        dayLocate = dayofweek.indexOf(" ")
        weekDay = dayofweek.substring(0, dayLocate)
        newDay = dayofweek.substring(dayLocate)
        dateLocate = newDay.indexOf(",")
        monthDate = newDay.substring(0, dateLocate+1)
        yearLocate = dayofweek.indexOf("2014")
        year = dayofweek.substr(yearLocate, 4)

        var bridalExpo = new Date("February 12, 2015")
        var daysToGo = bridalExpo.getTime() - today.getTime()
        var daysToBridalExpo = Math.ceil(daysToGo / (1000 * 60 * 60 * 24))

        displayCountDown.innerHTML = "<p style='font-size:12pt;
  font-family:helvetica;'>"
                                   +   "Today is " + weekDay + " " + monthDate + " "
 + year + ". We have " + daysToBridalExpo + " days until the  Midwest Bridal Expo."
                                   + "</p>"
      }

function scrollColor() {
    styleObject=document.getElementsByTagName('html')[0].style
    styleObject.scrollbarFaceColor="#ffde5b"
    styleObject.scrollbarTrackColor="#ffba00"
}

function loadInfo(myForm) {
var menuSelect=myForm.Menu.selectedIndex
var menuUrl=myForm.Menu.options[menuSelect].value+".html"
window.location=menuUrl
}

function copyRight() {
var lastModDate = document.lastModified
var lastModDate = lastModDate.substring(0,10)
displaycopyRight.innerHTML= "<p style ='font-size:8pt; font-weight:bold;'>
The URL of   this document is "+
document.URL+"<br />Midwest Bridal Expo"+"<br />This document was last 
modified "+lastModDate+". </p>"
}

//-->
 </script>
<style type="text/css">
.center {
text-align:center;
}

img {
border:0px;
}

.left-align {
width: 50%;
left: 0;
}

.right-align {
width: 50%;
right: 0;
text-align: right; 
} 

table {
width: 80%;
margin-right: 10%;
margin-left: 10%;
}

td {
padding: 5px;
}

</style>
</head>
<body onLoad=" scrollColor(); countDown(); copyRight()">
<div class="center">
<p><img src="chapter9-1banner.jpg" width="747" height="160" alt="Bridal 
Expo Banner">   </p>
<p style="font-family:Arial, Helvetica, sans-serif; font-size:18px
 ;   font-weight:bold;">Midwest Bridal Expo</p>
<img src="hrimg-wedding-burgundy.jpg" width="750" height="5" alt="hr">
<div id="displayCountDown">
</div>
<img src="hrimg-wedding-burgundy.jpg" width="750" height="5" alt="horizonal rule">
</div>
<table class="centerTable">
<tr>
<td colspan="2">
<p style="font-weight:bold; font-family:Arial, sans-serif; font-size:14pt">
Planning   your summer or fall wedding</p>
<p style="font-family: 'Times New Roman', Times, serif; font-size:12pt">The 
Midwest   Bridal Expo opens in Michigan on February 12, 2014 at the Ford 
Convention  Center. This Expo is for all couples planning to get married 
in the next year, with an emphasis on those planning a summer or fall wedding.
We have assembled a group of experts from all areas of wedding planning to 
help you plan your perfect day.</p>
</td>
 </tr>
<tr>
<td colspan="2">
<p style="font-weight:bold; font-family:Arial, sans-serif; font-size:14pt">
What awaits you</p>
<p style="font-family: 'Times New Roman', Times, serif; font-size:12pt">TEXT.</p>
<p style="font-family: 'Times New Roman', Times, serif; font-size:12pt">TEXT</p></td>
</tr>
<tr>
<td class="right-align"><img src="393px-Wedding_cake_with_pillar_supports,_2009.jpg"
width="197" height="300" alt="" style="background-color: #7f1100"></td>
<td class="left-align"><img src="Western_wedding_dress_in_Taiwan.jpg" width="226"
 height="300" alt="" style="background-color: #7f1100"></td>
</tr>
<tr>
<td colspan="2">
<form id="announceMenu">
  <p style="font-weight:bolder">
   For more information about the Expo:
     <select name="Menu" onChange="loadInfo(this.form)">
       <option>Select a topic</option>
       <option value="vendor">Vendor List</option>
       <option value="schedule">Schedule</option>
       <option value="tips">Wedding Tips</option>
   </select>
  </p>
</form>
</td>
</tr>
<tr>
<td colspan="2"><p style="font-weight:bold; font-family:Arial, sans-serif;  
font-size:14pt">Ticket Information: <span style="font-family: 'Times New Roman',
Times, serif; font-size: 10pt">For ticket reservations </span><span style="font-
family: 'Times New Roman', Times, serif; font-size:8pt">call 555-555-5555 x2205.
Early bird ticket holders get a 10% discount..</span></p>    
</td>
</tr>
</table>
<p></p>
<div id= "displaycopyRight">
</div>
</body>
</html>


中西部新娘博览会
//这是婚礼的倒计时
函数倒计时（）{
var today=新日期（）
var dayofweek=today.toLocaleString（）
dayLocate=dayofweek.indexOf（“”）
weekDay=dayofweek.substring（0，dayLocate）
newDay=dayofweek.substring（dayLocate）
dateLocate=newDay.indexOf（“，”）
monthDate=newDay.substring（0，dateLocate+1）
yearLocate=周指数日（“2014”）
年=星期几子项（年定位，4）
var bridalExpo=新日期（“2015年2月12日”）
var daysToGo=bridalExpo.getTime（）-today.getTime（）
var daysToBridalExpo=Math.ceil（daysToGo/（1000*60*60*24））
displayCountDown.innerHTML=““
+“今天是”+工作日+“”+月日+“”
+年+。离中西部新娘博览会还有“+daystobriddalexpo+”天。”
+“”
}
函数scrollColor（）{
styleObject=document.getElementsByTagName（'html'）[0]。样式
styleObject.scrollbarFaceColor=“#ffde5b”
styleObject.scrollbarTrackColor=“#ffba00”
}
函数loadInfo（myForm）{
var menuSelect=myForm.Menu.selectedIndex
var menuUrl=myForm.Menu.options[menuSelect].value+“.html”
window.location=menuUrl
}
函数版权（）{
var lastModDate=document.lastmodated
var lastModDate=lastModDate.substring（0,10）
displaycopyRight.innerHTML=“