为箭头绑定绑定键盘方向键

   <div class="toggle-nav">
      <span
        v-if="leftToggleSt"
        @click="toggleGoods(1)"
        @keyup.left="toggleGoods(1)"
        class="toggle-left"
      >
        <a-icon type="left" class="icon" />
      </span>
      <span
        v-if="rightToggleSt"
        @click="toggleGoods(2)"
        @keyup.right="toggleGoods(2)"
        tabindex="0"
        class="toggle-right"
      >
        <a-icon type="right" class="icon" />
      </span>
    </div>

  created() {
    const self = this;
    document.onkeyup = function(e) {
      if (e.key == "ArrowLeft" || e.key == "ArrowUp") {
        self.toggleGoods(1);
      } else if (e.key == "ArrowRight" || e.key == "ArrowDown") {
        self.toggleGoods(2);
      }
    }
  },
methods:{
	toggleGoods(){}
}

键盘上各按键对应的英文名