接口第一页页数为0

```vue
<template>
  <el-data-table v-bind="$data" />
</template>
<script>
  export default {
    data() {
      return {
        firstPage: 0,
        url: 'https://mockapi.eolinker.com/IeZWjzy87c204a1f7030b2a17b00f3776ce0a07a5030a1b/el-data-table?q=basic',
        columns: [
          {prop: 'date', label: '日期'},
          {prop: 'name', label: '姓名'},
          {prop: 'address', label: '地址'},
        ],
        form: [
          {
            type: 'input',
            id: 'name',
            label: '姓名',
            rules: [
              {
                required: true,
                message: '请输入姓名',
                trigger: 'blur',
                transform: v => v && v.trim()
              }
            ],
            el: {placeholder: '请输入姓名'}
          },
        ],
      }
    }
  }
</script>
```
