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                ??碼云GVP開源項目 12k star Uniapp+ElementUI 功能強大 支持多語言、二開方便! 廣告
                #### 問題分支 ***** ``` //問題描述:選中問題的不同選項會出現不同的下一題,最終的顯示效果根據問題序號決定 //解決思路:把所有問題的不同情況用數組列出來,根據數組來判斷下一題、進度以及返回時對應的題目 var str = 'q';//當前位置所在的問題序列 var prev = 'Info'; var next = ''; var arr = ['q2z','q1a1b1c1A','q1a1b1c2B','q1a1b2c1C','q1a1b2c2D','q1a2d1e0E','q1a2d3e0E','q1a2d2e0F','q1a3b1c1d1e0G','q1a3b1c1d3e0G','q1a3b1c2d1e0H','q1a3b1c2d3e0H','q1a3b2c1d1e0I','q1a3b2c1d3e0I','q1a3b2c2d1e0J','q1a3b2c2d3e0J','q1a3b1c1d2e0K','q1a3b1c2d2e0L','q1a3b2c1d2e0M','q1a3b2c2d2e0N']; //返回指定字符的下標 function resubscript(k,str){ for(var i = 0; i < str.length; i++){ if(str[i] == k){ return i; } } } //返回下一個出現的字符及所在位置百分比 function nextshow(obj,str){ for(var i = 0; i < arr.length; i++){ if(obj[i].indexOf(str) != -1){ var length = obj[i].length; var next = obj[i].substring(str.length,str.length+1); return { next: next, len: (resubscript(next,obj[i])/2+1)/(length/2)*100 } } } } //重新加載 function reloads(){ $("#z").animate({ opacity: "hide" }, 0); $('#a').animate({ opacity: "show" },1000); str = 'q1a'; } function reload(){ window.location.href = window.location.href; } /*Info*/ function ClickQ1() { $("#Info").animate({ opacity: "hide" }, 0); $("#q").animate({ opacity: "show" }, 1000); } //返回按鈕事件 function BackInfo() { $(".siderror").hide(); next = str.substring(str.length-1,str.length); prev = str.substring(str.length-3,str.length-2); str = str.slice(0,str.length-2); $("#"+next).animate({ opacity: "hide" }, 0); if(str.length<1){ str = 'q'; $("#Info").animate({ opacity: "show" }, 1000); }else{ $("#"+prev).animate({ opacity: "show" }, 1000); } } function ClickQ2a(){ $(".siderror").hide(); next = str.substring(str.length-1,str.length); prev = str.substring(str.length-3,str.length-2); str = str.slice(0,str.length-2); $("#"+next).animate({ opacity: "hide" }, 0); if(str.length<1){ str = 'q'; $("#Info").animate({ opacity: "show" }, 1000); }else{ $("#"+prev).animate({ opacity: "show" }, 1000); } } //下一題的點擊事件 function ClickQ1a(that) { //答案序號 var n = $(that).parents('.FormButton').prev('div').find('input[name="Field1"]:checked').val(); var that = that; $(".siderror").hide(); if(n != undefined){ str = str + n; prev = str.substring(str.length-2,str.length-1); next = nextshow(arr,str).next; //進度 $('#'+next).find('.process_bar').css({ left:nextshow(arr,str).len-8+'%' }); str = str + next; $("#"+prev).animate({ opacity: "hide" }, 0); $('#'+next).animate({ opacity: "show" },1000) }else { $(that).parents('.FormButton').prev('div').find('#ErrMsg1').html('請選擇你的答案').show(); } } ```
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