vue 循环遍历list_vuejs怎样遍历显示数组里的值？v-for嵌套循环

1. 题目：{{item.question}}

   1. {{item2}}

   答案：{{item.answer}}

赋值代码：

getData() {

console.log("试卷编号是：id==" + localStorage.getItem("examId"));

this.$axios.get("/exam/findExamById", {params: {id: localStorage.getItem("examId")}}).then(response => {

console.log(response.data.result);

if (response.data.result) {

// this.ruleForm = response.data.result;

console.log(typeof this.ruleForm);

var arr = response.data.result.topics;

this.ruleForm.topics = arr.map(item => {

return {

id: item.id,

description: item.description,

question: item.question,

answer: item.answer,

answerList: item.question.split('|||').slice(1),

type: this.typeNameTransformation(item.type),

categories: item.categories,

score: item.score,

time: item.time,

createTime: item.createTime,

};

});

this.ruleForm.total = response.data.result.total;

this.ruleForm.name = response.data.result.name;

this.ruleForm.description = response.data.result.description;

this.ruleForm.personal = response.data.result.personal;

localStorage.setItem("examIsPersonal", this.personal);

this.ruleForm.topics.singleChoiceData = arr.filter(item => {

return item.type === 'SINGLE_CHOICE';

});

this.ruleForm.topics.multipleChoiceData = arr.filter(item => {

return item.type === 'MULTIPLE_CHOICE';

});

this.ruleForm.topics.judgeData = arr.filter(item => {

return item.type === 'JUDGE';

});

this.ruleForm.topics.completionData = arr.filter(item => {

return item.type === 'COMPLETION';

});

this.ruleForm.topics.questionAndAnswerData = arr.filter(item => {

return item.type === 'QUESTION_AND_ANSWER';

});

console.log(this.ruleForm.topics);

console.log(this.ruleForm.topics.singleChoiceData);

// this.allTopicTransformation(this.ruleForm.topics);

this.completionDataTransformation(this.ruleForm.topics.completionData);

// console.log(response.data.result.topics.singleChoiceData);

console.log(this.ruleForm.topics.singleChoiceData);

console.log(typeof this.ruleForm.topics.singleChoiceData);

console.log("等到这个页面的数据多了之后，需要再检查一下分页是否正常！");

} else {

console.log("获取题目信息失败： " + response.data.msg);

}

}).catch(function (error) {

console.log(error);

})

}

},

这个代码为什么不生效？？？？？？

数组不是这样取值的吗？