1、最近在用h5的canvas画动画，发现图像特别模糊。后来终于找到罪魁祸首是<meta name="viewport" content="width=device-width,initial-scale=1,minimum-scale=1,maximum-scale=1,user-scalable=no" />这个代码，因为这行代码进行了伸缩

2、模糊图像的效果：

3、将压缩去掉后的效果

可以将代码改成

<!DOCTYPE html>

<html>

<head>

    <meta charset="utf-8" />

    <meta name="viewport" content="user-scalable=no" />

    <title>赛事详细页</title>

    <script src="js/rem.js" type="text/javascript" charset="utf-8"></script>

    <link rel="stylesheet" type="text/css" href="css/m_reset.css" />

    <link rel="stylesheet" type="text/css" href="css/gameListsNew.css" />

    <link href="css/mask.css" rel="stylesheet" />

</head>

<body>

    <div class="tipMask">

        <div class="tipBox">

            <img src="img/faileTip.png" class="tipsImg" />

            <div class="fileBtn">

                <img src="img/fileBtn.png" />

                <span class="tryAgain">再试一次</span>

            </div>

        </div>

    </div>

    <div>

        <img src="img/whiteBack.png" class="titleImg" />

        <div class="bgEvent" id="contentbody">

            <div id="eventDetail" v-cloak>

                <!--标题-->

                <div class="detailevent">

                    <div class="titlevs">

                        <img class="teamFlagLogo" onerror="nofind(this);" :src="'img/teamlogonew/'+eventDetail.HomeTeamID+'.png'" />

                        <div class="countryName">

                            {{eventDetail.HomeTeamName}}

                        </div>

                    </div>

                    <div class="titlevs" style="padding-top:0.3rem ;">

                        <div>

                            <!--未开赛-->

                            <!--<p class="theWorldCup">世界杯</p>-->

                            <p class="theGameNowDataTime">{{eventDetail.TimeFormat }}</p>

                            <p class="gameBeginTime">{{getScoreOrVs(eventDetail.HomeTeamScore,eventDetail.AwayTeamScore)}}</p>

                        </div>

                        <!--开赛时长-->

                        <!--<div>

                            <p>:</p>

                        </div>-->

                    </div>

                    <div class="titlevs">

                        <img class="teamFlagLogo" onerror="nofind(this);"

                             :src="'img/teamlogonew/'+eventDetail.AwayTeamID+'.png'" />

                        <div class="countryName">

                            {{eventDetail.AwayTeamName}}

                        </div>

                    </div>

                </div>

                <div id="ordersuccess" class="ordersuccess">

                    <div style="text-align:right;padding-top:0.2rem;padding-left:0.2rem;">

                        <img src="img/ordersuccess/close.png" style="width:0.45rem;height:0.45rem;" id="closesuccess" onclick="closesuccess();" />

                    </div>

                    <div class="teamname">

                        <div class="teamnameitem"><p class="teamnameitemtop">{{eventDetail.HomeTeamName}}</p><br /><p class="teamnameitembottom">HOME</p></div>

                        <div class="teamnameitem "><p class="teamnameitemmiddle">VS</p></div>

                        <div class="teamnameitem"><p class="teamnameitemtop">{{eventDetail.AwayTeamName}}</p><br /><p class="teamnameitembottom">AWAY</p></div>

                    </div>

                    <div class="teamdetail">

                        <div class="teamdate"><span>{{eventDetail.CompetitionName}}</span><span>/</span><span>{{eventDetail.DateFormat}}</span></div>

                        <div class="teamplaysselection">

                            <table style="width:100%;text-align:left;height:100%;">

                                <tr>

                                    <td class="teamplaysselectiontop" style="width:50%;">玩法</td>

                                    <td class="teamplaysselectiontop" style="width:50%;">选项</td>

                                </tr>

                                <tr>

                                    <td class="teamplaysselectionbottom" style="width:50%;" id="rulename">Match Odds</td>

                                    <td class="teamplaysselectionbottom" style="width:50%;" id="selectionname">Home</td>

                                </tr>

                            </table>

                        </div>

                        <div class="teamwinmoney">

                            <table style="width:90%;text-align:left;height:100%;">

                                <tr>

                                    <td class="teamwinmoneytop" style="width:50%;">

                                        本金

                                    </td>

                                    <td class="teamwinmoneytop" style="width:50%;">

                                        赔率

                                    </td>

                                    <td class="teamwinmoneytop" style="width:50%;">

                                        预赢

                                    </td>

                                </tr>

                                <tr>

                                    <td class="teamwinmoneybottom" style="width:50%;" id="betmoneysuc"></td>

                                    <td class="teamwinmoneybottom" style="width:50%;" id="betodds">12.54</td>

                                    <td class="teamwinmoneybottom" style="width:50%;" id="betwin"></td>

                                </tr>

                            </table>

                        </div>

                    </div>

                </div>

            </div>

            <div>

                <div class="square" id="square">

                    <canvas id="courtCaseNew" width="" height=""></canvas>

                </div>

                <img src="img/balllittle.png" style="width:20px;height:20px;display:none;" id="imgballNew" />

            </div>

            <div class="middlechat">

                <div class="middleitem" id="jcc">

                    <p class="tabActive">竞猜场</p>

                </div>

                <div class="middleitem" id="jcjl">

                    <p class="tabCommon">竞猜记录</p>

                </div>

                <div class="middleitem" id="sssj">

                    <p class="tabCommon">赛事事件</p>

                </div>

                <div class="middleitem" id="jstj">

                    <p class="tabCommon">技术统计</p>

                </div>

            </div>

            <div class="downChangrTab quizGames" style="display: block;">

                <div id="ruleTypeItems" v-cloak>

                    <!--胜平负-->

                    <div class="diffPlaysTetx" v-for="(item,index) in eventDetail.Market" v-if="item.RuleType==100">

                        <span class="speciesName">赛果</span>

                        <span class="rotary" v-if="item.State!=1">(已封盘)</span>

                        <span class="speciesExp">猜90分钟(含补时)两队的比赛结果</span>

                    </div>

                    <div v-for="(item,index) in eventDetail.Market" v-if="item.RuleType==100" id="result" name="selectionItems" class="result">

                        <div v-bind:class="[(select.BackOdds<1.01 || item.State!=1) ? 'resutitemGray commonBorderGray':'resutitem commonBorder']" v-for="(select,index) in item.Selection"

                             v-on:click="select.BackOdds>=1.01 &&clickFun($event,item.State,select.BackOdds,item.MarketId,select.SelectionId,'赛果',select.SelectionName);" name="itemSelection">

                            <p class="winEquLose" v-bind:name="'item'+item.MarketId">{{select.SelectionName}}</p>

                            <p class="winEquLoseOdds " v-bind:name="'item'+item.MarketId">

                                <span v-bind:id="item.MarketId+select.SelectionId" v-bind:maxlimit="select.MaxStakeLimit">{{select.BackOdds}}</span>

                                <img src="img/upIng.png" style="width:0.2rem;display:none;" v-bind:id="'redOne'+item.MarketId+select.SelectionId" />

                                <img src="img/downIng.png" style="width:0.2rem;display:none;" v-bind:id="'greenOne'+item.MarketId+select.SelectionId" />

                            </p>

                        </div>

                    </div>

                    <!--单双-->

                    <div class="diffPlaysTetx" v-for="(item,index) in eventDetail.Market" v-if="item.RuleType==130">

                        <span class="speciesName">单双</span>

                        <span class="rotary" v-if="item.State!=1">(已封盘)</span>

                        <span class="speciesExp">猜90分钟(含补时)比赛总进球的单双</span>

                    </div>

                    <div id="oddeven" v-for="(item,index) in eventDetail.Market" v-if="item.RuleType==130" name="selectionItems" class="oddeven">

                        <div v-bind:class="[(select.BackOdds<1.01 || item.State!=1) ? 'oddevenitemGray commonBorderGray':'oddevenitem commonBorder']" v-for="(select,index) in item.Selection" v-on:click="select.BackOdds>=1.01 &&clickFun($event,item.State,select.BackOdds,item.MarketId,select.SelectionId,'单双',select.SelectionName)" name="itemSelection">

                            <p class="winEquLose" v-bind:name="'item'+item.MarketId" v-bind:id="'selectionname'+item.MarketId+select.SelectionId">{{select.SelectionName}}</p>

                            <p class="winEquLoseOdds" v-bind:name="'item'+item.MarketId">

                                <span v-bind:id="item.MarketId+select.SelectionId" v-bind:maxlimit="select.MaxStakeLimit">{{select.BackOdds}}</span>

                                <img src="img/upIng.png" style="width:0.2rem;display:none;" v-bind:id="'redOne'+item.MarketId+select.SelectionId" />

                                <img src="img/downIng.png" style="width:0.2rem;display:none;" v-bind:id="'greenOne'+item.MarketId+select.SelectionId" />

                            </p>

                        </div>

                    </div>

                    <!--总进球-->

                    <div class="diffPlaysTetx" v-for="(item,index) in eventDetail.Market" v-if="item.RuleType==410">

                        <span class="speciesName">总进球 </span>

                        <span class="rotary" v-if="item.State!=1">(已封盘)</span>

                        <span class="speciesExp">猜90分钟(含补时)比赛总进球的数 </span>

                    </div>

                    <div id="totalGoals" v-for="(item,index) in eventDetail.Market" v-if="item.RuleType==410" name="selectionItems" class="totalGoals">

                        <div v-bind:class="[(select.BackOdds<1.01 || item.State!=1) ? 'totalGoalitemGray commonBorderGray':'totalGoalitem commonBorder']" v-for="(select,index) in item.Selection" v-on:click="select.BackOdds>=1.01 &&clickFun($event,item.State,select.BackOdds,item.MarketId,select.SelectionId,'总进球',select.SelectionName)" name="itemSelection">

                            <p class="winEquLose" v-bind:name="'item'+item.MarketId" v-bind:id="'selectionname'+item.MarketId+select.SelectionId">{{select.SelectionName}}</p>

                            <p class="winEquLoseOdds" v-bind:name="'item'+item.MarketId">

                                <span v-bind:id="item.MarketId+select.SelectionId" v-bind:maxlimit="select.MaxStakeLimit">{{select.BackOdds}}</span>

                                <img src="img/upIng.png" style="width:0.2rem;display:none;" v-bind:id="'redOne'+item.MarketId+select.SelectionId" />

                                <img src="img/downIng.png" style="width:0.2rem;display:none;" v-bind:id="'greenOne'+item.MarketId+select.SelectionId" />

                            </p>

                        </div>

                    </div>

                    <!--全场比分-->

                    <div class="diffPlaysTetx" v-for="(item,index) in eventDetail.Market" v-if="item.RuleType==140">

                        <span class="speciesName">全场比分</span>

                        <span class="rotary" v-if="item.State!=1">(已封盘)</span>

                        <span class="speciesExp">猜90分钟(含补时)全场比分</span>

                    </div>

                    <div id="correctScoreHome" v-for="(item,index) in eventDetail.Market" v-if="item.RuleType==140" name="selectionItems" class="correctScoreHomeAway">

                        <div v-bind:class="[(select.BackOdds<1.01 || item.State!=1) ? 'correctScoreitemGray commonBorderGray':'correctScoreitem commonBorder']" v-for="(select,index) in item.Selection" v-on:click="select.BackOdds>=1.01 &&clickFun($event,item.State,select.BackOdds,item.MarketId,select.SelectionId,'全场比分',select.SelectionName)" name="itemSelection">

                            <p class="winEquLose" v-bind:name="'item'+item.MarketId" v-bind:id="'selectionname'+item.MarketId+select.SelectionId">{{select.SelectionName}}</p>

                            <p class="winEquLoseOdds" v-bind:name="'item'+item.MarketId">

                                <span v-bind:id="item.MarketId+select.SelectionId" v-bind:maxlimit="select.MaxStakeLimit">{{select.BackOdds}}</span>

                                <img src="img/upIng.png" style="width:0.2rem;display:none;" v-bind:id="'redOne'+item.MarketId+select.SelectionId" />

                                <img src="img/downIng.png" style="width:0.2rem;display:none;" v-bind:id="'greenOne'+item.MarketId+select.SelectionId" />

                            </p>

                        </div>

                    </div>

                    <div class="downImg" onclick="clickImg()">

                        <img src="img/toDown.png" />

                    </div>

                    <!--下一进球-->

                    <div class="diffPlaysTetx" v-for="(item,index) in eventDetail.Market" v-if="item.RuleType==350">

                        <span class="speciesName">下一进球</span>

                        <span class="rotary" v-if="item.State!=1">(已封盘)</span>

                        <span class="speciesExp">猜90分钟(含补时)下一进球的球队</span>

                    </div>

                    <div id="nextgoal" v-for="(item,index) in eventDetail.Market" v-if="item.RuleType==350" name="selectionItems" class="result">

                        <div v-bind:class="[(select.BackOdds<1.01 || item.State!=1) ? 'resutitemGray commonBorderGray':'resutitem commonBorder']" v-for="(select,index) in item.Selection" v-on:click="select.BackOdds>=1.01 &&clickFun($event,item.State,select.BackOdds,item.MarketId,select.SelectionId,'下一进球',select.SelectionName)" name="itemSelection">

                            <p class="winEquLose" v-bind:name="'item'+item.MarketId" v-bind:id="'selectionname'+item.MarketId+select.SelectionId">{{select.SelectionName}}</p>

                            <p class="winEquLoseOdds" v-bind:name="'item'+item.MarketId">

                                <span v-bind:id="item.MarketId+select.SelectionId" v-bind:maxlimit="select.MaxStakeLimit">{{select.BackOdds}}</span>

                                <img src="img/upIng.png" style="width:0.2rem;display:none;" v-bind:id="'redOne'+item.MarketId+select.SelectionId" />

                                <img src="img/downIng.png" style="width:0.2rem;display:none;" v-bind:id="'greenOne'+item.MarketId+select.SelectionId" />

                            </p>

                        </div>

                        <div class="" style="width: 100%;height:0.45rem;"></div>

                    </div>

                    <div class="perchDiv" style="width: 100%;height:3rem;"></div>

                </div>

            </div>

            <!--竞猜记录-->

            <div class="downChangrTab guessRecord">

                <div class="hide-body" id="dialogorders">

                    <div class="tableNameGuess">

                        <li>玩法</li>

                        <li>选项</li>

                        <li>赔率</li>

                        <li>本金</li>

                        <li>结果</li>

                    </div>

                    <ul style="background:#FFFFFF;height:4.79rem;overflow: scroll;">

                        <div class="guessedLists" id="contentOrders" v-for="(item,index) in orders">

                            <li>

                                {{item.MarketName}}

                            </li>

                            <li>

                                {{item.SelectionName}}

                            </li>

                            <li>

                                {{item.FillPrice}}

                            </li>

                            <li>

                                {{item.FillAmount}}

                            </li>

                            <li>

                                <p v-if="item.Status == '0'"> 待确认</p>

                                <p v-else-if="item.Status == '1'">订单正常</p>

                                <p v-else-if="item.Status == '2'">{{item.NetReturn}}</p>

                                <p v-else-if="item.Status == '3'">订单已被取消</p>

                                <p v-else-if="item.Status == '4'">订单无效</p>

                                <p v-else="item.Status == '5'">订单被拒绝，投注延迟期间发生重要事件等原因</p>

                            </li>

                        </div>

                    </ul>

                </div>

            </div>

            <!--赛事事件-->

            <div class="downChangrTab" style="display: none;" v-if="">

                <div class="login-body" id="contentCases">

                    <table class="whatHappen" v-if="cases.length >0">

                        <tr>

                            <td></td>

                            <td class="happenedMiddle">

                                <div class="happenedMiddle_top" style="margin-top: 0.4rem;"></div>

                            </td>

                            <td></td>

                        </tr>

                    </table>

                    <table class="whatHappen" style="" v-for="(item,index) in cases" border="" cellspacing="" cellpadding="">

                        <tr>

                            <td></td>

                            <td class="happenedMiddle">

                                <div class="happenedMiddle_line"></div>

                            </td>

                            <td></td>

                        </tr>

                        <tr v-if="item.CaseDescription.indexOf('主')>-1">

                            <td class="eventsHappendLeft_things">

                                <div class="eventsText">

                                    <p class="eventsTextLeft_time">{{item.CaseMinutes}}'</p>

                                    <p class="eventsTextLeft_Country">{{item.CaseDescription}}</p>

                                </div>

                            </td>

                            <td class="happenedMiddle">

                                <div class="eventsHappend_img">

                                    <img :src="GetMatchEventImg(item.CaseDescription)" />

                                </div>

                            </td>

                            <td></td>

                        </tr>

                        <tr v-if="item.CaseDescription.indexOf('客')>-1">

                            <td></td>

                            <td class="happenedMiddle">

                                <div class="eventsHappend_img">

                                    <img :src="GetMatchEventImg(item.CaseDescription)" />

                                </div>

                            </td>

                            <td class="eventsHappendRight_things">

                                <div class="eventsText">

                                    <p class="eventsTextRight_Country">{{item.CaseDescription}}</p>

                                    <p class="eventsTextRight_time">{{item.CaseMinutes}}'</p>

                                </div>

                            </td>

                        </tr>

                        <tr v-if="item.CaseDescription.indexOf('主')<0 && item.CaseDescription.indexOf('主')<0">

                            <td></td>

                            <td>

                                <a class="ti tlefoc">{{item.CaseMinutes}}'</a>

                                <a class="titlefoc">{{item.DesChina}}</a>

                            </td>

                            <td></td>

                        </tr>

                    </table>

                    <table class="whatHappen" v-if="cases.length >0">

                        <tr>

                            <td></td>

                            <td class="happenedMiddle">

                                <div class="happenedMiddle_line"></div>

                                <div class="happenedMiddle_top"></div>

                            </td>

                            <td></td>

                        </tr>

                    </table>

                    <!--<div style="width: 100%; height: 2.7rem;"></div>-->

                </div>

            </div>

            <!--技术统计-->

            <div class="downChangrTab" style="display: none;">

                <div class="skillInfoGaryBg" id="stutsskillsData">

                    <div class="skillInfo" v-for="(item, index) in skillsData">

                        <li class="shotsOnTargets">

                            <div class="shotsOnTargets_left">

                                <p class="skillsTextFonts">{{item.AwayTeamValue}}</p>

                                <div class="sotl_bg">

                                    <div class="sotl_bgProgress"></div>

                                </div>

                            </div>

                            <div class="shotsOnTargets_middle">

                                <img :src="GetMatchStatsImage(item.StatsType)" />

                                <p class="shills_name">{{item.StatsType}}</p>

                            </div>

                            <div class="shotsOnTargets_right">

                                <p class="skillsTextFonts">{{item.HomeTeamValue}}</p>

                                <div class="sotl_bg">

                                    <div class="sotl_bgProgress"></div>

                                </div>

                            </div>

                        </li>

                    </div>

                </div>

            </div>

        </div>

        <!--底部下单-->

        <div class="buttomOrder">

            <!--金额输入-->

            <!--竞猜金额-->

            <div class="aboutMoney">

                <input type="text" name="" id="betmoney" class="gussMoney" value="竞猜金额" placeholder="" readonly="readonly" v-model="gussMoney" />

                <img src="img/clearBetMoney.png" class="clearGussMoney" id="clearGussMoney" />

                <!--余额-->

                <span class="balanceMoney" id="minemoney">我的余额：</span>

                <!--下注金额-->

                <div class="diffGussMoney" style="text-align:center;">

                    <ul>

                        <li name="bettingmoney" class="difGuMonCom" val="">+</li>

                        <li name="bettingmoney" class="difGuMonCom" val="">+</li>

                        <li name="bettingmoney" class="difGuMonCom" val="">+</li>

                        <li class="difGuMonCom" id="allin" style="line-height: 0.5rem;">

                            <p style="height: 0.3rem;">All <span style="margin-left: 0.05rem;">in</span></p>

                            <p id="allinvalue" style="height: 0.3rem;"></p>

                        </li>

                    </ul>

                </div>

                <!--确定-->

                <p class="subSure subSureRed" style="text-align:center;" onclick="CreateOrder();" id="subSure">

                    确定

                </p>

            </div>

        </div>

        <!--下单成功后遮罩层-->

        <div id="overlay" class="overlay"></div>

    </div>

    <div>

        <img src="img/goal/goalball.png" />

        <img src="img/goal/goal.png" />

        <img src="img/goal/fireworks.png" />

    </div>

    <script src="js/jquery-1.10.2.min.js" type="text/javascript" charset="utf-8"></script>

    <script src="js/vue.min.js" type="text/javascript" charset="utf-8"></script>

    <script src="js/common.js?ver=012902" type="text/javascript" charset="utf-8"></script>

    <script src="js/jquery.cookie.min.js"></script>

    <script src="js/mask.js?ver=012901"></script>

    <script type="text/javascript" src="js/eventDetailsNew.js?ver=012908"></script>

    <script src="../js/animation.js"></script>

</body>

</html>

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