json后端给我的数据，现在要将 标准陪练-5节 这条数据不展示。我的想法第一想法是要么隐藏，要么处理json删除这条数据。我用delete，但是发现原json长度不变只是变空了，而且在v-for渲染的时候报错了

var app = new Vue({

el:"#myapp",

data:function(){

return{

json:[

{"type_name":"正课","lesson_name":"标准陪练课(中级)-90节","course_name":"标准陪练","lesson_no":"BZ-c2-3","lesson_num":90,"lesson_id":37,"xufei_buy_num":1,"level_name":"中级","money":11380,"shengyu_lesson_num":100,"free_lesson_num":12,"mode_name":"陪练","tuifei_num":0,"modify_date":"2017-10-16 13:32:41","lesson_min":50,"shouci_buy_num":1},

{"type_name":"正课","lesson_name":"标准陪练课(中级)-120节","course_name":"标准陪练","lesson_no":"BZ-c2-4","lesson_num":120,"lesson_id":38,"xufei_buy_num":0,"level_name":"中级","money":14180,"shengyu_lesson_num":0,"free_lesson_num":0,"mode_name":"陪练","tuifei_num":0,"modify_date":"2017-10-16 13:33:38","lesson_min":50,"shouci_buy_num":0},

{"type_name":"正课","lesson_name":"标准陪练课(中级)-200节","course_name":"标准陪练","lesson_no":"BZ-c2-5","lesson_num":200,"lesson_id":39,"xufei_buy_num":0,"level_name":"中级","money":22880,"shengyu_lesson_num":217,"free_lesson_num":17,"mode_name":"陪练","tuifei_num":0,"modify_date":"2017-10-16 13:35:01","lesson_min":50,"shouci_buy_num":1},

{"type_name":"正课","lesson_name":"标准陪练课(高级)-30节","course_name":"标准陪练","lesson_no":"BZ-c3-1","lesson_num":30,"lesson_id":40,"xufei_buy_num":1,"level_name":"高级","money":4680,"shengyu_lesson_num":35,"free_lesson_num":10,"mode_name":"陪练","tuifei_num":0,"modify_date":"2017-10-16 13:36:20","lesson_min":50,"shouci_buy_num":0},

{"type_name":"正课","lesson_name":"标准陪练课(高级)-60节","course_name":"标准陪练","lesson_no":"BZ-c3-2","lesson_num":60,"lesson_id":41,"xufei_buy_num":1,"level_name":"高级","money":9180,"shengyu_lesson_num":58,"free_lesson_num":2,"mode_name":"陪练","tuifei_num":0,"modify_date":"2017-10-16 13:37:36","lesson_min":50,"shouci_buy_num":0},

{"type_name":"正课","lesson_name":"标准陪练课(高级)-90节","course_name":"标准陪练","lesson_no":"BZ-c3-3","lesson_num":90,"lesson_id":42,"xufei_buy_num":0,"level_name":"高级","money":13480,"shengyu_lesson_num":91,"free_lesson_num":3,"mode_name":"陪练","tuifei_num":0,"modify_date":"2017-10-16 13:38:41","lesson_min":50,"shouci_buy_num":1},

{"type_name":"正课","lesson_name":"标准陪练课(高级)-120节","course_name":"标准陪练","lesson_no":"BZ-c3-4","lesson_num":120,"lesson_id":43,"xufei_buy_num":0,"level_name":"高级","money":17080,"shengyu_lesson_num":0,"free_lesson_num":0,"mode_name":"陪练","tuifei_num":0,"modify_date":"2017-10-16 13:39:45","lesson_min":50,"shouci_buy_num":0},

{"type_name":"正课","lesson_name":"标准陪练课(高级)-200节","course_name":"标准陪练","lesson_no":"BZ-c3-5","lesson_num":200,"lesson_id":44,"xufei_buy_num":0,"level_name":"高级","money":27680,"shengyu_lesson_num":0,"free_lesson_num":0,"mode_name":"陪练","tuifei_num":0,"modify_date":"2017-10-16 13:40:58","lesson_min":50,"shouci_buy_num":0},

{"type_name":"正课","lesson_name":"标准陪练-20节","course_name":"标准陪练","lesson_no":"BZ-c0-02","lesson_num":20,"lesson_id":64,"xufei_buy_num":0,"level_name":"全级别","money":2000,"shengyu_lesson_num":0,"free_lesson_num":0,"mode_name":"陪练","tuifei_num":0,"modify_date":"2017-11-24 15:15:22","lesson_min":50,"shouci_buy_num":0},

{"type_name":"正课","lesson_name":"标准陪练-5节","course_name":"标准陪练","lesson_no":"BZ-c0-01","lesson_num":20,"lesson_id":63,"xufei_buy_num":0,"level_name":"全级别","money":2000,"shengyu_lesson_num":14,"free_lesson_num":0,"mode_name":"陪练","tuifei_num":0,"modify_date":"2017-11-24 15:14:44","lesson_min":25,"shouci_buy_num":1}

]

}

},

created:function(){

//解开就报错

// for (let i = 0; i < this.json.length; i++) {

// console.log(i)

// for(let k in this.json[i]){

// if (this.json[i][k] == "标准陪练-5节") {

// delete this.json[i];

// break;

// }

// }

// }

}

})