input 加减

<a-input class="input-center-met" v-model:value="form.name1">
              <template #prefix>
                <div class="flex items-center">
                  <div class="number-btn auto" @click="addAndSubtract('name1', 2, 100)">
                    <PubSvgIcon name="minus-icon" size="1rem" />100
                  </div>
                  <div class="number-btn auto ml-1" @click="addAndSubtract('name1', 2, 10)">
                    <PubSvgIcon name="minus-icon" size="1rem" />10
                  </div>
                  <div class="number-btn auto ml-1" @click="addAndSubtract('name1', 2, 1)">
                    <PubSvgIcon name="minus-icon" size="1rem" />1
                  </div>
                </div>
              </template>
              <template #suffix>
                <div class="flex items-center">
                  <div class="number-btn auto" @click="addAndSubtract('name1', 1, 1)">
                    <PubSvgIcon name="add-icon" size="1rem" />1
                  </div>
                  <div class="number-btn auto ml-1" @click="addAndSubtract('name1', 1, 10)">
                    <PubSvgIcon name="add-icon" size="1rem" />10
                  </div>
                  <div class="number-btn auto ml-1" @click="addAndSubtract('name1', 1, 100)">
                    <PubSvgIcon name="add-icon" size="1rem" />100
                  </div>
                </div>
              </template>
            </a-input>

// 加减法(1加/2减)
function addAndSubtract(field: string, type: number, value: number = 1) {
  const fieldValue = Number(form.value[field]);
  if (type === 1) {
    if (value === 0.1) {
      form.value[field] = (fieldValue + value).toFixed(2);

    } else {
      form.value[field] = (fieldValue + value)
    }
  }
  else {
    if (value === 0.1) {
      form.value[field] = (fieldValue - value).toFixed(2);

    } else {
      form.value[field] = (fieldValue - value)
    }

  }
}