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答题判断对错中,为什么只执行else语句,而不执行if语句中的内容,,求解

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悬赏园豆:10 [已解决问题] 解决于 2016-05-07 10:10
<!DOCTYPE HTML>
<html>
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1">
<title>演示:jQuery实现的测试答题功能</title>
<meta name="keywords" content="css3,表单,复选框美化" />
<meta name="description" content="Helloweba文章结合实例演示HTML5、CSS3、jquery、PHP等WEB技术应用。" />
<link rel="stylesheet" type="text/css" href="styles.css" />
<style type="text/css">
.demo{    width: 100%;
         margin: 0 auto;
        display: block;
    }

</style>
<script type="text/javascript" src="http://libs.useso.com/js/jquery/1.7.2/jquery.min.js"></script>
<script src="quiz.js"></script>
<script>
var init={
    'questions':[
    {
        'question':'1.你喜欢吃什么水果?',
        'answers':['苹果','香蕉','葡萄',''],
        'correctAnswer':1
    },
    {
        'question':'2.你最喜欢什么颜色?',
        'answers':['蓝色','绿色','白色','紫色'],
        'correctAnswer':3
    },
    {
        'question':'3.你喜欢哪个城市?',
        'answers':['北京','上海','深圳','厦门'],
        'correctAnswer':3
    },
    {
        'question':'4.你最喜欢做的事?',
        'answers':['看书','听音乐','旅行','画画'],
        'correctAnswer':2
    },
    {
        'question':'5.你喜欢的季节?(可多选)',
        'answers':['春季','秋季','夏季','冬季'],
        'correctAnswer':"1,2"
    }
    ]
 };

$(function(){
    $('#quiz-container').jquizzy({
        questions: init.questions
    });
});
</script>
</head>

<body>

<div id="main">
    <div class="demo">
        <div id='quiz-container'></div>
    </div>
</div>
</div>
<!-- 弹窗 -->
<div class="result">
    <div class="box"></div>
    <p class="btns">继续</p>
</div>

</body>
</html>
.main-quiz-holder{margin:0 auto;position:relative;background:#FCFCFC;border:1px solid #dedede;box-shadow:0 1px 5px #D9D9D9,inset 0 10px 20px #F1F1F1;-o-box-shadow:0 1px 5px #D9D9D9,inset 0 10px 20px #F1F1F1;-webkit-box-shadow:0 1px 5px #D9D9D9,inset 0 10px 20px #F1F1F1;-moz-box-shadow:0 1px 5px #D9D9D9,inset 0 10px 20px #F1F1F1;border-radius:20px 2px 20px 2px;position:relative;}
.main-quiz-holder *{margin:0;padding:0;font-family:"Microsoft yahei",sans-serif;}
.main-quiz-holder a{text-decoration:none;color:#6C6C6C;}
.main-quiz-holder .slide-container{padding:20px 50px 50pt 50px;}
.results-container,.intro-container{text-align:center;}
.results-container{}.main-quiz-holder .slide-container .question,.main-quiz-holder h2.qTitle{margin:10px 0 20px 0;font-size:20px;font-weight:normal;}
.main-quiz-holder h2.qTitle{font-size:20px;margin-top:30px; line-height:26px}
.main-quiz-holder .question-number{position:absolute;right:10px;top:10px;border:1px solid #F6F6F6;padding:5px;background:#F0F0F0;text-shadow:0 1px 0 rgba(255,255,255,0.3);-webkit-box-shadow:inset 0 0 0 1px rgba(255,255,255,0.2),inset 0 0 6px 0 rgba(255,255,255,0.3),0 1px 2px rgba(0,0,0,0.4);-moz-box-shadow:inset 0 0 0 1px rgba(255,255,255,0.2),inset 0 0 6px 0 rgba(255,255,255,0.3),0 1px 2px rgba(0,0,0,0.4);box-shadow:inset 0 0 0 1px rgba(255,255,255,0.2),inset 0 0 6px 0 rgba(255,255,255,0.3),0 1px 2px rgba(0,0,0,0.4);border-radius:3px;color:#949494;}
.main-quiz-holder .slide-container ul.answers{margin:0px;padding:5px;list-style:none;}
.main-quiz-holder .slide-container ul.answers li{cursor:pointer;padding:5px 30px;margin:12px 0;color:#4c4c4c;-webkit-border-radius:4px;-moz-border-radius:4px;border-radius:4px;text-shadow:0 1px 0 rgba(255,255,255,0.3);-webkit-box-shadow:inset 0 0 0 1px rgba(255,255,255,0.2),inset 0 0 6px 0 rgba(255,255,255,0.3),0 1px 2px rgba(0,0,0,0.4);-moz-box-shadow:inset 0 0 0 1px rgba(255,255,255,0.2),inset 0 0 6px 0 rgba(255,255,255,0.3),0 1px 2px rgba(0,0,0,0.4);box-shadow:inset 0 0 0 1px rgba(255,255,255,0.2),inset 0 0 6px 0 rgba(255,255,255,0.3),0 1px 2px rgba(0,0,0,0.4);background:#f6f6f6;background:-webkit-gradient(linear,left top,left bottom,from(#f6f6f6),to(#d4d4d4));background:-webkit-linear-gradient(#f6f6f6,#d4d4d4);background-image:-moz-linear-gradient(top,#f6f6f6,#d4d4d4);background-image:-moz-gradient(top,#f6f6f6,#d4d4d4);border:1px solid #a1a1a1;}.main-quiz-holder .slide-container ul.answers li.selected{background:#6fb2e5;box-shadow:0 1px 5px #0061aa,inset 0 10px 20px #b6f9ff;-o-box-shadow:0 1px 5px #0061aa,inset 0 10px 20px #b6f9ff;-webkit-box-shadow:0 1px 5px #0061aa,inset 0 10px 20px #b6f9ff;-moz-box-shadow:0 1px 5px #0061aa,inset 0 10px 20px #b6f9ff;}.main-quiz-holder .slide-container .prev,.main-quiz-holder .slide-container .next{height:19px;cursor:pointer;padding:5px 10px;font-size:16px;padding:5px 15px;color:#4c4c4c;border-radius:4px;text-shadow:0 1px 0 rgba(255,255,255,0.3);background:#6fb2e5;box-shadow:0 1px 5px #0061aa,inset 0 10px 20px #b6f9ff;-o-box-shadow:0 1px 5px #0061aa,inset 0 10px 20px #b6f9ff;-webkit-box-shadow:0 1px 5px #0061aa,inset 0 10px 20px #b6f9ff;-moz-box-shadow:0 1px 5px #0061aa,inset 0 10px 20px #b6f9ff;}.main-quiz-holder .slide-container .next{background:#77d125;box-shadow:0 1px 5px #3caa00,inset 0 10px 20px #c9ffb6;-o-box-shadow:0 1px 5px #3caa00,inset 0 10px 20px #c9ffb6;-webkit-box-shadow:0 1px 5px #3caa00,inset 0 10px 20px #c9ffb6;-moz-box-shadow:0 1px 5px #3caa00,inset 0 10px 20px #c9ffb6;}
.main-quiz-holder .progress-keeper{margin:0px 12px;box-shadow:0 1px 5px #D9D9D9,inset 0 10px 20px #F1F1F1;-o-box-shadow:0 1px 5px #D9D9D9,inset 0 10px 20px #F1F1F1;-webkit-box-shadow:0 1px 5px #D9D9D9,inset 0 10px 20px #F1F1F1;-moz-box-shadow:0 1px 5px #D9D9D9,inset 0 10px 20px #F1F1F1;border-radius:2px;border:1px solid #dedede;margin:0px auto 20px auto;}
.main-quiz-holder .progress{width:0;height:10px;color:#4c4c4c;background:#f6f6f6;background:-webkit-gradient(linear,left top,left bottom,from(#f6f6f6),to(#d4d4d4));background:-webkit-linear-gradient(#f6f6f6,#d4d4d4);background-image:-moz-linear-gradient(top,#f6f6f6,#d4d4d4);background-image:-moz-gradient(top,#f6f6f6,#d4d4d4);}
.main-quiz-holder .result-keeper{margin:10px;text-align:center;}
.main-quiz-holder .notice {
    margin-top: -30px;
    color: red;
    position: absolute;
    right: 52px;
    bottom: 42px;
}
.main-quiz-holder .slide-container .prev{width:70px;float:left;}
.main-quiz-holder .slide-container .next,.main-quiz-holder .slide-container .final{width:70px;float:right;}
.main-quiz-holder .slide-container .final{width:65px;}
.main-quiz-holder .nav-previous{}.main-quiz-holder .nav-next{}.main-quiz-holder .nav-show-result{padding-left:25px;background:url(images/confirm.png) left no-repeat;}
.main-quiz-holder .nav-start{display:block;margin:40px auto 0 auto; line-height:32px; font-size:20px; font-weight:bold}.main-quiz-holder .nav-container{margin:15px 0;}
.main-quiz-holder .result-row{width:80px;margin:10px 20px;float:left;position:relative;}
.main-quiz-holder .result-row .resultsview-qhover{background:#FCFCFC;border:1px solid #dedede;box-shadow:0 1px 5px #D9D9D9,inset 0 10px 20px #F1F1F1;-o-box-shadow:0 1px 5px #D9D9D9,inset 0 10px 20px #F1F1F1;-webkit-box-shadow:0 1px 5px #D9D9D9,inset 0 10px 20px #F1F1F1;-moz-box-shadow:0 1px 5px #D9D9D9,inset 0 10px 20px #F1F1F1;border-radius:2px 10px 2px 10px;position:absolute;width:250px;top:50px;left:-80px;z-index:200;padding:15px 30px;text-align:left;font-size:22px;}
.main-quiz-holder .resultsview-qhover ul{list-style:none;margin:10px 0;}
.main-quiz-holder .resultsview-qhover li{padding:0 28px;margin:5px 0;min-height:20px;font-size:14px;background: #FCFCFC;border:1px solid #F6F6F6;border-radius:3px;}
.main-quiz-holder .resultsview-qhover li.selected{}.main-quiz-holder .resultsview-qhover li.right{}.main-quiz-holder .correct,.main-quiz-holder .wrong{ height:19px;cursor:pointer;padding:5px 10px;font-size:14px;padding:5px 15px;color:#4c4c4c;border-radius:4px;text-shadow:0 1px 0 rgba(255,255,255,0.3);-webkit-box-shadow:inset 0 0 0 1px rgba(255,255,255,0.2),inset 0 0 6px 0 rgba(255,255,255,0.3),0 1px 2px rgba(0,0,0,0.4);-moz-box-shadow:inset 0 0 0 1px rgba(255,255,255,0.2),inset 0 0 6px 0 rgba(255,255,255,0.3),0 1px 2px rgba(0,0,0,0.4);box-shadow:inset 0 0 0 1px rgba(255,255,255,0.2),inset 0 0 6px 0 rgba(255,255,255,0.3),0 1px 2px rgba(0,0,0,0.4);}.main-quiz-holder .correct{background:#c3e462;background:-webkit-gradient(linear,left top,left bottom,from(#c3e462),to(#90b61e));background:-webkit-linear-gradient(#c3e462,#90b61e);background-image:-moz-linear-gradient(top,#c3e462,#90b61e);background-image:-moz-gradient(top,#c3e462,#90b61e);border:1px solid #bfff00;}.main-quiz-holder .wrong{background:#fc5e5e;background:-webkit-gradient(linear,left top,left bottom,from(#fc5e5e),to(#ea4646));background:-webkit-linear-gradient(#fc5e5e,#ea4646);background-image:-moz-linear-gradient(top,#fc5e5e,#ea4646);background-image:-moz-gradient(top,#fc5e5e,#ea4646);border:1px solid #e36d6d;}.main-quiz-holder .correct span{padding:0 10px;background:url(images/confirm.png) 6px 2px no-repeat;}.main-quiz-holder .wrong span{padding:0 10px;background:url(images/delete.png) 6px 2px no-repeat;color:#474747;}.main-quiz-holder .question{padding-left:5px;line-height:1.3em;}.main-quiz-holder .share-button{display:block;margin:15px 0;}.jquizzy-clear{clear:both;}.main-quiz-holder .right{float:none;}.main-quiz-holder img{border:none;}

.result{
    position: fixed;
    top: 82px;
    left: 40px;
    width: 77%;
    height: 39%;
    z-index: 99;
    background: rgba(0,0,0,0.7);
    display: none;
    border-radius: 15px;
}
.box {
    color: #fff;
    text-align: center;
    padding-top: 22%;
}
.btns {
    position: absolute;
    bottom: 19%;
    color: #fff;
    right: 5%;
    background: green;
    border-radius: 6px;
    padding: 4px;
    width: 60px;
    text-align: center;
    font-wei
(function($) {
    $.fn.jquizzy = function(settings) {
        var defaults = {
            questions: null,
            startImg: 'images/start.gif',
            endText: '已结束!',
            shortURL: null,
            sendResultsURL: null,
            resultComments: {
                perfect: '你是爱因斯坦么?',
                excellent: '非常优秀!',
                good: '很好,发挥不错!',
                average: '一般般了。',
                bad: '太可怜了!',
                poor: '好可怕啊!',
                worst: '悲痛欲绝!'
            }
        };

        var config = $.extend(defaults, settings);
        if (config.questions === null) {
            $(this).html('<div class="intro-container slide-container"><h2 class="qTitle">Failed to parse questions.</h2></div>');
            return;
        }

        var superContainer = $(this),
        answers = [],
        introFob = '<div class="intro-container slide-container"><a class="nav-start" href="#">请认真完成测试题。准备好了吗?<br/><br/><span><img src="'+config.startImg+'"></span></a></div>    ',
        exitFob = '<div class="results-container slide-container"><div class="question-number">' + config.endText + '</div><div class="result-keeper"></div></div><div class="notice">请选择一个选项!</div><div class="progress-keeper" ><div class="progress"></div></div>',
        contentFob = '',
        questionsIteratorIndex,
        answersIteratorIndex;
        superContainer.addClass('main-quiz-holder');
        for (questionsIteratorIndex = 0; questionsIteratorIndex < config.questions.length; questionsIteratorIndex++) {
            contentFob += '<div class="slide-container"><div class="question-number">' + (questionsIteratorIndex + 1) + '/' + config.questions.length + '</div><div class="question">' + config.questions[questionsIteratorIndex].question + '</div><ul class="answers">';
            for (answersIteratorIndex = 0; answersIteratorIndex < config.questions[questionsIteratorIndex].answers.length; answersIteratorIndex++) {
                contentFob += '<li>' + config.questions[questionsIteratorIndex].answers[answersIteratorIndex] + '</li>';
            }
            contentFob += '</ul><div class="nav-container">';
            if (questionsIteratorIndex !== 0) {
                contentFob += '<div class="prev"><a class="nav-previous" href="#">&lt; 上一题</a></div>';
            }
            if (questionsIteratorIndex < config.questions.length - 1) {
                contentFob += '<div class="next"><a class="nav-next" href="#">下一题 &gt;</a></div>';
            } else {
                contentFob += '<div class="next final"><a class="nav-show-result" href="#">完成</a></div>';
            }
            contentFob += '</div></div>';
            answers.push(config.questions[questionsIteratorIndex].correctAnswer);
        }
        superContainer.html(introFob + contentFob + exitFob);
        var progress = superContainer.find('.progress'),
        progressKeeper = superContainer.find('.progress-keeper'),
        notice = superContainer.find('.notice'),
        progressWidth = progressKeeper.width(),
        userAnswers = [],
        questionLength = config.questions.length,
        slidesList = superContainer.find('.slide-container');

      //判断答案
        function checkAnswers() {
            var resultArr = [],
            flag = false;
            for (i = 0; i < answers.length; i++) {
                if (answers[i] == userAnswers[i]) {
                    flag = true;
                } else {
                    flag = false;
                }
                resultArr.push(flag);
            }
            return resultArr;
        }

        function roundReloaded(num, dec) {
            var result = Math.round(num * Math.pow(10, dec)) / Math.pow(10, dec);
            return result;
        }

        /*判断分数*/
        function judgeSkills(score) {
            var returnString;
            if (score === 100) return config.resultComments.perfect;
            else if (score > 90) return config.resultComments.excellent;
            else if (score > 70) return config.resultComments.good;
            else if (score > 50) return config.resultComments.average;
            else if (score > 35) return config.resultComments.bad;
            else if (score > 20) return config.resultComments.poor;
            else return config.resultComments.worst;
        }
        progressKeeper.hide();
        notice.hide();
        slidesList.hide().first().fadeIn(500);

       //点击选项
        superContainer.find('li').click(function() {
            var thisLi = $(this);
            var MultiSelect =0;               //定义多选
       
                //单选
               /* if (thisLi.hasClass('selected')) {
                     thisLi.removeClass('selected');
                 } else {
                     thisLi.parents('.answers').children('li').removeClass('selected');
                     thisLi.addClass('selected');
                 }*/

        if(MultiSelect >1){
            //多选
            if($(this).attr("select") == "selected"){
                $(this).attr("select","");
            }else{
                $(this).attr("select","selected");
            }
            
        }else{
            //单选
           if (thisLi.hasClass('selected')) {
                     thisLi.removeClass('selected');
                 } else {
                     thisLi.parents('.answers').children('li').removeClass('selected');
                     thisLi.addClass('selected');
                 }  
        }

      

        // 继续
           $(".btns").click(function() {
              $(".result").hide();
              })
            });

        /*开始*/
        superContainer.find('.nav-start').click(function() {
            $(this).parents('.slide-container').fadeOut(500,
            function() {
                $(this).next().fadeIn(500);
                progressKeeper.fadeIn(500);
            });
            return false;
        });


        /*下一题*/
         var flag=0;//用于标记
        superContainer.find('.next').click(function() {
          flag++;
             //未选中消息提醒
            if ($(this).parents('.slide-container').find('li.selected').length === 0) {
                notice.fadeIn(300);
                return false;
            }


            //答题判断对错
              var uAnswer=(superContainer.find('li').index( $(this)[0] ) + 1)%4;
              if(answers[flag]==uAnswer){

                    $(".box").html("恭喜您答对了!"); 
                    $(".result").show(500);//弹窗 

                }else{

                    $(".result").show(500);//弹窗 
                    $(".box").html("很遗憾答错了!正确答案是:"+answers[flag-1]); 
               }
             //  console.log("uAnswer="+answers[flag-1]);

            notice.hide();
            $(this).parents('.slide-container').fadeOut(500,
            function() {
                $(this).next().fadeIn(500);
            });
            progress.animate({
                width: progress.width() + Math.round(progressWidth / questionLength)
            },
            500);
            return false;
        });


        /*上一题*/
        superContainer.find('.prev').click(function() {
            flag--;
            notice.hide();
            $(this).parents('.slide-container').fadeOut(500,
            function() {
                $(this).prev().fadeIn(500);
            });
            progress.animate({
                width: progress.width() - Math.round(progressWidth / questionLength)
            },
            500);
            return false;
        });
        

        /*完成*/
        superContainer.find('.final').click(function() {
            if ($(this).parents('.slide-container').find('li.selected').length === 0) {
                notice.fadeIn(300);
                return false;
            }
            superContainer.find('li.selected').each(function(index) {
                userAnswers.push($(this).parents('.answers').children('li').index($(this).parents('.answers').find('li.selected')) + 1);
            });
            if (config.sendResultsURL !== null) {
                var collate = [];
                for (r = 0; r < userAnswers.length; r++) {
                    collate.push('{"questionNumber":"' + parseInt(r + 1, 10) + '", "userAnswer":"' + userAnswers[r] + '"}');
                }
                $.ajax({
                    type: 'POST',
                    url: config.sendResultsURL,
                    data: '{"answers": [' + collate.join(",") + ']}',
                    complete: function() {
                        console.log("OH HAI");
                    }
                });
            }
            progressKeeper.hide();
            var results = checkAnswers(),
            resultSet = '',
            trueCount = 0,
            shareButton = '',
            score,
            url;
            if (config.shortURL === null) {
                config.shortURL = window.location
            };
            for (var i = 0,
            toLoopTill = results.length; i < toLoopTill; i++) {
                if (results[i] === true) { 
                    trueCount++;
                    isCorrect = true;
                }
                resultSet += '<div class="result-row">' + (results[i] === true ? "<div class='correct'>#"+(i + 1)+"<span></span></div>": "<div class='wrong'>#"+(i + 1)+"<span></span></div>");
                resultSet += '<div class="resultsview-qhover">' + config.questions[i].question;
                resultSet += "<ul>";
                for (answersIteratorIndex = 0; answersIteratorIndex < config.questions[i].answers.length; answersIteratorIndex++) {
                    var classestoAdd = '';
                    if (config.questions[i].correctAnswer == answersIteratorIndex + 1) {
                        classestoAdd += 'right';
                    }
                    if (userAnswers[i] == answersIteratorIndex + 1) {
                        classestoAdd += ' selected';
                    }
                    resultSet += '<li class="' + classestoAdd + '">' + config.questions[i].answers[answersIteratorIndex] + '</li>';
                }
                resultSet += '</ul></div></div>';
            }
            score = roundReloaded(trueCount / questionLength * 100, 2);
            
            resultSet = '<h2 class="qTitle">' + judgeSkills(score) + '<br/> 您的分数: ' + score + '</h2>' + shareButton + '<div class="jquizzy-clear"></div>' + resultSet + '<div class="jquizzy-clear"></div>';
            superContainer.find('.result-keeper').html(resultSet).show(500);
            superContainer.find('.resultsview-qhover').hide();
            superContainer.find('.result-row').hover(function() {
                $(this).find('.resultsview-qhover').show();
            },
            function() {
                $(this).find('.resultsview-qhover').hide();
            });
            $(this).parents('.slide-container').fadeOut(500,
            function() {
                $(this).next().fadeIn(500);
            });
            return false;
        });
    };
})(jQuery);
像风一样自由~~~的主页 像风一样自由~~~ | 初学一级 | 园豆:48
提问于:2016-05-06 11:00
< >
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最佳答案
0

唔,这代码有点多,看的头昏了,你试试把===换成==

收获园豆:10
natureless | 初学一级 |园豆:11 | 2016-05-06 13:36

这里用的就是==

像风一样自由~~~ | 园豆:48 (初学一级) | 2016-05-06 13:41

@像风一样自由~~~: 唔,我看的上面的,你把两个console一下不就好咯

natureless | 园豆:11 (初学一级) | 2016-05-06 13:43

@natureless: 没效果,,感觉是判断句那边的问题,,就是没找出来

像风一样自由~~~ | 园豆:48 (初学一级) | 2016-05-06 13:46

@像风一样自由~~~: 唔,光看语法没什么问题,你确定等号两边console出来的东西一样?

natureless | 园豆:11 (初学一级) | 2016-05-06 13:49

@natureless: 不一样,,,后面部分的全是0

像风一样自由~~~ | 园豆:48 (初学一级) | 2016-05-06 13:52

@像风一样自由~~~: ==、那问题不就解决了么

natureless | 园豆:11 (初学一级) | 2016-05-06 13:52

@natureless: 

像风一样自由~~~ | 园豆:48 (初学一级) | 2016-05-06 13:54

@natureless: 这两个不相等

像风一样自由~~~ | 园豆:48 (初学一级) | 2016-05-06 13:54

@像风一样自由~~~: 你的问题不就是为什么不走if 走else么,不等当然走else

natureless | 园豆:11 (初学一级) | 2016-05-06 13:56

@natureless: 是这么说没错,,那也就是获取的值有误了

像风一样自由~~~ | 园豆:48 (初学一级) | 2016-05-06 13:57

@像风一样自由~~~: so......That is a problem

natureless | 园豆:11 (初学一级) | 2016-05-06 13:58

@natureless: GOD

像风一样自由~~~ | 园豆:48 (初学一级) | 2016-05-06 14:00
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