小程序 题目顺序也要修改

learnOnline/app.json

@@ -23,7 +23,7 @@
     "navigationBarTitleText": "MBA学习系统"
   },
   "tabBar": {
-    "borderStyle": "#dcdcdc",
+    "borderStyle": "white",
     "color": "#313131",
     "backgroundColor": "#ffffff",
     "selectedColor": "#b49441",

learnOnline/pages/learnSystem/courseContent/examDetail/examDetail.js

@@ -40,6 +40,29 @@ Page({
   startTime: '',
   /* 记录所有题目是否都答过 */
   recordAll: [],
+
+  arrRandomSort: function (arr) {
+    /* 对json.questions 进行一次乱序排列 */
+    let tmpJson = null
+
+    tmpJson = arr.shift()
+    arr.push(tmpJson)
+    tmpJson = arr.shift()
+    arr.push(tmpJson)
+    tmpJson = arr.shift()
+    arr.push(tmpJson)
+  },
+  unArrRandomSort: function (arr) {
+    /* 取消乱序排列，恢复原顺序 */
+    let tmpJson = null
+
+    tmpJson = arr.pop()
+    arr.unshift(tmpJson)
+    tmpJson = arr.pop()
+    arr.unshift(tmpJson)
+    tmpJson = arr.pop()
+    arr.unshift(tmpJson)
+  },
   /**
    * 将返回值 - 对照到对应 data上
    */
@@ -54,6 +77,7 @@ Page({
       score: 0
     }
     this.startTime = new Date().getTime()
+    this.arrRandomSort(json.questions)
     let _data = {
       id: json.id,
       semester_id: json.semester_id,
@@ -182,6 +206,7 @@ Page({
         options: group[i].arr
       })
     }
+    this.unArrRandomSort(arr)
     this.param.work_contents = JSON.stringify(arr)
     this.param.score = (score/total*100).toFixed(1)
     wx.showLoading({ title: '提交中...', mask: true })