微信小程序开发设计答题 界面无法显示问题和选项

微信小程序设计答题 界面无法显示题目

var json = [

{
    "question": "1+1=?",
    "option": {
      "A": "1",
      "B": "2",
      "C": "3",
      "D": "4",
},
  "true": "2",   // 正确答案
  "scores": 10,  // 分值
  "checked": false  // 默认没有选中
},
  {
    "question": "2+2=?",
    "option": {
      "A": "2",
      "B": "4",
      "C": "6",
      "D": "8",
},
  "true": "B",  
  "scores": 10,
  "checked": false
},
{
  "question": "3+3=?",
  "option": {
    "A": "2",
    "B": "4",
    "C": "6",
    "D": "8",
},
"true": "C",  
"scores": 10,
"checked": false
},
{
  "question": "5+5=?",
  "option": {
    "A": "10",
    "B": "7",
    "C": "6",
    "D": "8",
},
"true": "A",  
"scores": 10,
"checked": false
},
{
  "question": "4+4=?",
  "option": {
    "A": "2",
    "B": "4",
    "C": "6",
    "D": "8",
},
"true": "D",  
"scores": 10,
"checked": false
},
{
  "question": "6+6=?",
  "option": {
    "A": "12",
    "B": "14",
    "C": "16",
    "D": "18",
},
"true": "A",  
"scores": 10,
"checked": false
},
{
  "question": "7+7=?",
  "option": {
    "A": "12",
    "B": "14",
    "C": "16",
    "D": "18",
},
"true": "B",  
"scores": 10,
"checked": false
},
{
  "question": "8+8=?",
  "option": {
    "A": "12",
    "B": "14",
    "C": "16",
    "D": "18",
},
"true": "C",  
"scores": 10,
"checked": false
},
{
  "question": "9+9=?",
  "option": {
    "A": "12",
    "B": "14",
    "C": "16",
    "D": "18",
},
"true": "D",  
"scores": 10,
"checked": false
},
{
  "question": "2+3=?",
  "option": {
    "A": "2",
    "B": "5",
    "C": "6",
    "D": "8",
},
"true": "B",  
"scores": 10,
"checked": false
}
]
      

module.exports = {
  questionList: json
}

// app.js
var jsonList = require('data/json.js');
App({
  globalData:{
    questionList:jsonList.questionList
  }
})

<view class="page">
<view>
<view class="timu">
{{index+1}}、{{questionList[index].question}}
每题{{questionList[index].scores}}分
view>
view>
<view>
  <radio-group  bindchange="radioChange" wx:if="{{questionList[index].type == 1}}">
  <label wx:for="{{questionList[index].option}}"wx:for-index="key"  wx:for-item="value">
        <radio value="{{key}}" checked="{{questionList[index].checked}}"/>{{key}}、{{value}}
      label>
    radio-group>
<view>
<button bindtap='nextSubmit' wx:if="{{index==questionList.length-1}}">提交button>
<button bindtap='nextSubmit' wx:else>下一题button>
view>
view>
view>

1.没看到有type这个字段
2.index没有定义