如何使用一个按钮提交两个表单？CodeIgniter

<form id="form1" action="submitForm1" method="post">
    <!-- 表单1的字段和提交按钮 -->
    <input type="text" name="field1" />
    <input type="submit" value="提交表单1" />
</form>

<form id="form2" action="submitForm2" method="post">
    <!-- 表单2的字段和提交按钮 -->
    <input type="text" name="field2" />
    <input type="submit" value="提交表单2" />
</form>

class FormController extends CI_Controller {
    public function submitForm1() {
        // 处理表单1的提交逻辑
        $field1Value = $this->input->post('field1');
        // ...
    }

    public function submitForm2() {
        // 处理表单2的提交逻辑
        $field2Value = $this->input->post('field2');
        // ...
    }
}

$route['submitForm1'] = 'FormController/submitForm1';
$route['submitForm2'] = 'FormController/submitForm2';