我正在向api发送请求，该请求返回的响应看起来像
{"quiz_history":{},"user":{"id":196,"nickname":"VuexTest3","login_code":"88988472","host":1,"room_id":46,"emoji":"/images/emojis/2.png","created_at":"2019-10-15 16:24:14","updated_at":"2019-10-15 16:24:14"},"quiz":[{"id":1,"date_playable":"2019-10-15 00:00:00","created_at":"2019-10-15 16:38:23","updated_at":"2019-10-15 16:38:23","questions":[{"id":1,"quiz_id":1,"question":"Velit sed sint consequatur iusto.","created_at":"2019-10-15 16:38:23","updated_at":"2019-10-15 16:38:23","answers":[{"id":1,"answer":"aut","correct":0,"question_id":1,"created_at":"2019-10-15 16:38:23","updated_at":"2019-10-15 16:38:23"},{"id":2,"answer":"modi","correct":0,"question_id":1,"created_at":"2019-10-15 16:38:23","updated_at":"2019-10-15 16:38:23"},{"id":3,"answer":"sunt","correct":1,"question_id":1,"created_at":"2019-10-15 16:38:23","updated_at":"2019-10-15 16:38:23"},{"id":4,"answer":"mollitia","correct":0,"question_id":1,"created_at":"2019-10-15 16:38:23","updated_at":"2019-10-15 16:38:23"}]},{"id":2,"quiz_id":1,"question":"In praesentium laboriosam molestiae voluptatem natus.","created_at":"2019-10-15 16:38:23","updated_at":"2019-10-15 16:38:23","answers":[{"id":5,"answer":"similique","correct":0,"question_id":2,"created_at":"2019-10-15 16:38:23","updated_at":"2019-10-15 16:38:23"},{"id":6,"answer":"possimus","correct":0,"question_id":2,"created_at":"2019-10-15 16:38:23","updated_at":"2019-10-15 16:38:23"},{"id":7,"answer":"dolorem","correct":1,"question_id":2,"created_at":"2019-10-15 16:38:23","updated_at":"2019-10-15 16:38:23"},{"id":8,"answer":"labore","correct":0,"question_id":2,"created_at":"2019-10-15 16:38:23","updated_at":"2019-10-15 16:38:23"}]},{"id":3,"quiz_id":1,"question":"Aut totam quia praesentium qui.","created_at":"2019-10-15 16:38:23","updated_at":"2019-10-15 16:38:23","answers":[{"id":9,"answer":"non","correct":0,"question_id":3,"created_at":"2019-10-15 16:38:23","updated_at":"2019-10-15 16:38:23"},{"id":10,"answer":"aperiam","correct":0,"question_id":3,"created_at":"2019-10-15 16:38:23","updated_at":"2019-10-15 16:38:23"},{"id":11,"answer":"et","correct":1,"question_id":3,"created_at":"2019-10-15 16:38:23","updated_at":"2019-10-15 16:38:23"},{"id":12,"answer":"nihil","correct":0,"question_id":3,"created_at":"2019-10-15 16:38:23","updated_at":"2019-10-15 16:38:23"}]},{"id":4,"quiz_id":1,"question":"Expedita porro et fuga in. 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我想设置状态以匹配响应，我正在这样做，
mutations: {
setQuiz(state, payload) {
state = {...payload.quiz};
},
},
这是一个称为测验的模块，所以我希望我能得到类似state.quiz的内容，其中包含服务器响应的内容。
但是，state.quiz突变之后为空。我不明白为什么。
答案 0 :(得分：0)
根据您的响应，您得到的输出是
{...paylad.quiz}
输出
{
0: {id: 1, date_playable: "2019-10-15 00:00:00", created_at: "2019-10-15 16:38:23", updated_at: "2019-10-15 16:38:23", questions: Array(15)}
}
这里是数组格式的测验，当您在对象（{}）内传播算子（...）时，它尝试使用数组索引和值作为数组值创建对象键
相反，您可以
mutations: {
setQuiz(state, payload) {
state.quiz = payload.quiz;
},
},