van-picker中columns绑定数组对象的用法-van-picker 里 value-key 怎么使用？

参考链接：https://www.zhihu.com/question/509169405/answer/2292170011

caseFromColumns: [
        { label: '巡逻发现', value: '0' },
        { label: '投诉举报', value: '1' },
        { label: '重大舆情', value: '2' },
        { label: '专项巡查任务', value: '3' }
      ],

   // 案件来源点击确定
   caseFromonConfirm(e) {
     this.form.caseFromName = e.label
     this.form.caseFromCode = e.value
     this.caseFromCodeShow = false
   },`

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