# 设置为第一个工作表

## **函数原型**

```php
setCurrentSheetIsFirst(): self
```

## **实例**

```php
$config = ['path' => './tests'];
$excel  = new \Vtiful\Kernel\Excel($config);

$excel->fileName('hide.xlsx', 'sheet1') // 初始化文件，同时初始化第一张工作表 sheet1
    ->header(['sheet1'])       // 在 sheet1 工作表中插入数据
    ->addSheet('sheet2')       // 添加新工作表 sheet2，并设置当前活动工作表为 sheet2
    ->setCurrentSheetIsFirst() // 当前活动工作表为 sheet2，设置 sheet2 工作表为第一张工作表
    ->output();
```


---

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