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  • js 定时跳转, 格式化字符串时间

    效果

    1、js中将一字符串表示的系统时间转换为Date时间对象

    //js中将一串字符串转换为date类型,主要是先过滤字符,然后分割开
    function parseToDate(strTime)
    {
        var arr=strTime.split(" ");
        if(arr.length>=2)
        {
            var arr1=arr[0].split("-");
            var arr2=arr[1].split(":");
        }
        else
            return null;
        if(arr1.length>=3 && arr2.length>=3)
        {
            var b=new Date(arr1[0],arr1[1]-1,arr1[2],arr2[0],arr2[1],arr2[2]);//将字符串转换为date类型
            return b;
        }
        else
            return null;
    }

     注意月份要减一;

    January(Jan.)一月, February(Feb.)二月,March(Mar.)三月, April(Apr.)四月, May(May)五月,June(Jun.)六月;,July(Jul.)七月,August(Aug.)八月, September(Sept.)九月, October(Oct.)十月, November(Nov.)十一月, December(Dec.)十二月。     周一:Monday;
    周二:Tuesday;
    周三:Wednesday;
    周四:Thursday;
    周五:Friday;
    周六:Saturday;
    周日:Sunday

    2、兼容移动端页面

    @media screen and (min-1200px){ .nofit{background-image: url(images/bj.jpg); auto;height:1008px;} 
    .content1{margin-top:-230px;margin-left: 96px;position:absolute; }
     .startbutton{background: url(images/startLotteryEn.png); 480px;height:112px;margin-top: -122px;margin-left: -250px;position:absolute; }
    }
    
     @media screen and (min- 960px) and (max- 1199px) { .nofit{ background-image: url(images/bj.jpg); auto;height:1008px;} 
     .content1{margin-top:-230px;margin-left: 96px;position:absolute; }
     .startbutton{background: url(images/startLotteryEn.png); 480px;height:112px;margin-top: -122px;margin-left: -250px;position:absolute; }
     }
    
     @media screen and (min- 768px) and (max- 959px) {.nofit{ background-image: url(images/bj.jpg); auto;height:1008px;} 
     .content1{margin-top:-230px;margin-left: 96px;position:absolute; }
     .startbutton{background: url(images/startLotteryEn.png); 480px;height:112px;margin-top: -122px;margin-left: -250px;position:absolute; }
     }
    
     @media only screen and (min- 480px) and (max- 767px){ .nofit{background-image: url(images/bj.jpg); auto;height:1008px;} 
     .content1{margin-top:-230px;margin-left: 96px;position:absolute; }
     .startbutton{background: url(images/startLotteryEn.png); 480px;height:112px;margin-top: -122px;margin-left: -250px;position:absolute; }
     } 
     
      @media only screen and (min- 321px) and (max- 479px){
    .nofit { background-image: url(images/bj1.jpg); auto;height:523px;}
    
       .startbutton{background: url(images/startLotteryEn1.png);     162px;    height: 38px;    margin-top: -104px;    margin-left: 20px;position:absolute; }
    
      .content1 {
        margin-top: -148px;
        margin-left: 43px;position:absolute; }
     } 
    
    @media only screen and (max- 320px) { .nofit { background-image: url(images/bj1.jpg); auto;height:523px;}
    
       .startbutton{background: url(images/startLotteryEn1.png);     162px;    height: 38px;    margin-top: -104px;    margin-left: -80px;position:absolute; }
    
      .content1 {
        margin-top: -148px;
        margin-left: 43px;position:absolute; }
     }

    源代码:

    <%@ page language="java" contentType="text/html; charset=UTF-8"
        pageEncoding="UTF-8"%>
    <%@ page isELIgnored="false"%>
    <%@ include file="/newver/common/taglibs.inc"%>
    <!DOCTYPE html>
    <html>
    <head>
    <meta name="viewport" content="width=device-width,user-scalable=no,maximum-scale=1.0,minimum-scale=1.0" />
    <meta content="telephone=no" name="format-detection" />
    <style type="text/css">
    dt {font-size: 20px; color: #fff; margin-top: 40px;}
    dd {font-size: 25px;color:#fff;margin-top: 10px;background-image: url(images/noselect.png);background-repeat: no-repeat; height: 90px;background-position:center; text-align: center; line-height:90px;}
    .body {background-image: url(images/annual.png); background-repeat: no-repeat; background-position:center; text-align: center; max- 640px;min- 320px;margin: auto;}
    .overspan{color: #0000ff;font-size: 20px;margin-top: 160px;display: block;}
    .commitbutton{background-image: url(images/commit.png); 322px;height:92px;margin-top: 80px; }
    
    
    
    @media screen and (min-1200px){ .nofit{background-image: url(images/bj.jpg); auto;height:1008px;} 
    .content1{margin-top:-230px;margin-left: 96px;position:absolute; }
     .startbutton{background: url(images/startLotteryEn.png); 480px;height:112px;margin-top: -122px;margin-left: -250px;position:absolute; }
    }
    
     @media screen and (min- 960px) and (max- 1199px) { .nofit{ background-image: url(images/bj.jpg); auto;height:1008px;} 
     .content1{margin-top:-230px;margin-left: 96px;position:absolute; }
     .startbutton{background: url(images/startLotteryEn.png); 480px;height:112px;margin-top: -122px;margin-left: -250px;position:absolute; }
     }
    
     @media screen and (min- 768px) and (max- 959px) {.nofit{ background-image: url(images/bj.jpg); auto;height:1008px;} 
     .content1{margin-top:-230px;margin-left: 96px;position:absolute; }
     .startbutton{background: url(images/startLotteryEn.png); 480px;height:112px;margin-top: -122px;margin-left: -250px;position:absolute; }
     }
    
     @media only screen and (min- 480px) and (max- 767px){ .nofit{background-image: url(images/bj.jpg); auto;height:1008px;} 
     .content1{margin-top:-230px;margin-left: 96px;position:absolute; }
     .startbutton{background: url(images/startLotteryEn.png); 480px;height:112px;margin-top: -122px;margin-left: -250px;position:absolute; }
     } 
     
      @media only screen and (min- 321px) and (max- 479px){
    .nofit { background-image: url(images/bj1.jpg); auto;height:523px;}
    
       .startbutton{background: url(images/startLotteryEn1.png);     162px;    height: 38px;    margin-top: -104px;    margin-left: 20px;position:absolute; }
    
      .content1 {
        margin-top: -148px;
        margin-left: 43px;position:absolute; }
     } 
    
    @media only screen and (max- 320px) { .nofit { background-image: url(images/bj1.jpg); auto;height:523px;}
    
       .startbutton{background: url(images/startLotteryEn1.png);     162px;    height: 38px;    margin-top: -104px;    margin-left: -80px;position:absolute; }
    
      .content1 {
        margin-top: -148px;
        margin-left: 43px;position:absolute; }
     }
    
    /*   .startbutton{background: url(images/startLotteryEn1.png);     162px;    height: 38px;    margin-top: -104px;    margin-left: -20px;position:absolute; }
    */
    
    </style>
    <script  type="text/JavaScript"> 
    function funLoad()//页面加载执行此函数
    {
        /*     var wjb51=screen.width;
        var hjb51=screen.height;
        alert("经系统检测,你的屏幕分辨率为 " + wjb51+"*"+ hjb51 + "by 脚本之家jb51.net");  */
        
        checkDate();    
        if("true"=="${empty requestScope.questionlist}")//如果没有邀请码,就不显示 抽奖画面
         {
            document.getElementById("HomePage").style.display="none";
         }
    
    }
    function countdown ()
    {
        var oldDate ="${prize.startTime}";//获取系统  开始  答题 时间    
        var end=parseToDate(oldDate);// new Date(Date.parse(oldDate.replace(/-/g, "/")));
    
        var now = new Date ();
        
        var m = Math.round ((end - now) / 1000);
        var day = parseInt (m / 24 / 3600);
        var hours = parseInt ((m % (3600 * 24)) / 3600);
        var minutes = parseInt ((m % 3600) / 60);
        var seconds = m % 60;
        if (m < 0)//时间到了,可以抽奖
        {
            if(screen.width<541)
                {
                document.getElementById('startbutton').style.background="url(images/startLottery1.png)";  
                }
            else
                {
                document.getElementById('startbutton').style.background="url(images/startLottery.png)";  
                }
            
            document.getElementById("content1").innerHTML="时间到了赶快抽奖吧!";
            document.getElementById('startbutton').addEventListener('click', showQuestion);
            return ;
        }
        document.getElementById("content1").innerHTML="时间还没有到,不能开始抽奖,离开始还剩" + day + "天" + hours + "小时" + minutes + "分钟" + seconds
                + "秒";
    
        setTimeout ('countdown()', 1000);
    
    }
    
    function checkDate()
    {  
        var oldDate ="${prize.startTime}";//获取系统  开始  答题 时间                
        var startTime=parseToDate(oldDate); //new Date(Date.parse(oldDate.replace(/-/g, "/")));  //抽奖开始 时间  兼容 火狐浏览器
        var newTime=new Date();//此刻时间
        if(newTime-startTime>=0)//如果,现在的时间比 抽奖开始时间大,就可以开始抽奖了
        {
            //时间到了,可以抽奖
            document.getElementById("HomePage").style.display="block";
    
            if(screen.width<541)
            {
            document.getElementById('startbutton').style.background="url(images/startLottery1.png)";  
            }
          else
            {
            document.getElementById('startbutton').style.background="url(images/startLottery.png)";  
            }
            
            document.getElementById('startbutton').addEventListener('click', showQuestion);
        }
        else//时间还没有到,不能开始抽奖
        {
            document.getElementById("HomePage").style.display="block";
            countdown ();//倒计时函数
        }
        
    }
    //js中将一串字符串转换为date类型,主要是先过滤字符,然后分割开  兼容火狐浏览器
    function parseToDate(strTime)
    {
        var arr=strTime.split(" ");
        if(arr.length>=2)
        {
            var arr1=arr[0].split("-");
            var arr2=arr[1].split(":");
        }
        else
            return null;
        if(arr1.length>=3 && arr2.length>=3)
        {
            var b=new Date(arr1[0],arr1[1]-1,arr1[2],arr2[0],arr2[1],arr2[2]);//将字符串转换为date类型
            return b;
        }
        else
            return null;
    }
    
    function showQuestion()//显示 抽奖问题
    {
        document.getElementById("HomePage").style.display="none";
        var div=document.getElementById("div_all");
        var divs=div.getElementsByTagName("div");
        if(divs.length > 0)
        {
            for(var i=0;i<divs.length;i++)
            {
                if(i == 0)
                {
                    divs.item(i).style.display="block";
                }
            }
        }
    }
    
    function funTouch(obj,index,isTrue)
    {     
        if(isTrue == 1)
        {
            obj.style.backgroundImage="url(images/selecttrue.png)";
            var div=document.getElementById("div_all");
            var divs=div.getElementsByTagName("div");
            divs.item(index).style.display="none";
            if(divs.length > (index + parseInt(1)))
            {
                divs.item(index + 1).style.display="block";
            }
            else
            {
                var commit=document.getElementById("commit");
                commit.style.display="block";
            }
        }
        else
        {
            obj.style.backgroundImage="url(images/selectfalse.png)";
        }
    }
    
    function commitResult()
    {
        window.location.href="/wap/wap!apiCommitAnswer.html2?prizeId=" + ${prizeId};
    }
    
    </script>
    <title>年会抽奖 - 药小二-手机版</title>
    <link type="text/css" rel="stylesheet" href="/wap/css/main.css" />
    </head>
    <body class="body" onload="funLoad();">
        <header class="header clearfix">
            <div class="goback fl">
                <a href="/wap/wap!member.html2"><img
                    src='/wap/images/icon_back.png' width="12" /></a>
            </div>
            <div class="logo">${prize.prizeName} 答题有奖</div>
        </header>
        
        <div id="div_all">
            <c:if test="${!empty requestScope.questionlist}">
                <c:forEach var="item" items="${requestScope.questionlist}"
                    varStatus="st">
                    <div id="block" style="display:none;">
                    
                            <dt>
                                <c:out value="${item.questionContent}" /> 
                            </dt>
                            
                            <dd style="margin-top: 20px;" onclick="funTouch(this,${st.index},${item.answers[0].isTrue});">
                                <c:out value="${item.answers[0].answerContent}" />
                            </dd>
                            
                            <dd  onclick="funTouch(this,${st.index},${item.answers[1].isTrue});">
                                <c:out value="${item.answers[1].answerContent}" />
                            </dd>
                            
                            <dd  onclick="funTouch(this,${st.index},${item.answers[2].isTrue});">
                                <c:out value="${item.answers[2].answerContent}" />
                            </dd>
                            
                            <dd  onclick="funTouch(this,${st.index},${item.answers[3].isTrue});">
                                <c:out value="${item.answers[3].answerContent}" />
                            </dd>
                            
                            <c:if test="${item.answerCount eq 5} }">
                             <dd   onclick="funTouch(this,${st.index},${item.answers[4].isTrue});">
                                <c:out value="${item.answers[4].answerContent}" />
                            </dd>
                            </c:if>
                            
                    </div>
                </c:forEach>
            </c:if>
        </div>    
        
        <div id="commit" style="display:none;">
          <span class="overspan">恭喜完成答题</span>
          <br/>
          <button class="commitbutton" onclick="commitResult();"></button>
        </div>
        
            <c:if test="${empty requestScope.questionlist}"><!--  没有问题 答了,显示此div-->
                        <div class="nofit"  style="color: #fff;"></div>
                        <button class="startbutton" onclick="startbutton();"></button>                    
                        <div class="content1">${errMessage}</div>
            </c:if>
            <div id="HomePage" style="display:none;">
            <div  class="nofit"  style="color: #fff;"></div>
            <button id="startbutton" class="startbutton" ></button>                    
            <div id="content1" class="content1">${errMessage}</div>
            </div>
    </body>
    </html>
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  • 原文地址:https://www.cnblogs.com/weiqinshian/p/5040834.html
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