<div class="gird-container">
  <div class="gird-item" v-for="(poker, index) in pokers" :key="index">
    <card :poker="poker" :index="index" @handleHuase="handleHuase" @handleWang="handleWang">
    </card>
  </div>
</div>

// 點擊操作
handleHuase (obj) {
// 這里用來記錄操作歷史
this.updateHistory.push(JSON.parse(JSON.stringify(this.pokers)))
  if (this.pokers[obj.index][obj.huase] > 0) {
    this.pokers[obj.index][obj.huase] -= 1
    this.pokers[obj.index].count -= 1
  } else {
    this.pokers[obj.index][obj.huase] = this.defaultCount
    this.pokers[obj.index].count += 1
  }
}

// 撤銷操作
rollback () {
  let pokers = this.updateHistory[this.updateHistory.length - 1]
  this.pokers = pokers
  this.updateHistory.pop(this.updateHistory.length - 1)
}