function textarea($field, $value, $fieldinfo) {
		extract($fieldinfo);
        if(!$value) $value = isset($default_value)?$default_value:'';
		$allow_empty = true;
		if($min_length || $pattern) $allow_empty = false;
        $string =  '<div class="mb-3 row '.$require.'">';
        $string .= '<label class="col-md-2 col-form-label">'.$fieldinfo['name'].'</label>';
        $string .= '<div class="col-md-10">';
        $string .= '<textarea  name="info['.$field.']" value="'.$value.'" '.$require.' data-pattern = "'.$pattern.'" data-errtips = "'.$errortips.'" autocomplete="off" class="form-control '.$require.'" '.$form_attribute.'   style="'.$css.'">';
        $string .= "$value</textarea>";
        $string .= $fieldinfo['tips']?'<div class="text-muted  input-word-aux">提示：'.$fieldinfo['tips'].'</div>':'';
        $string .= '</div>';
        $string .= '</div>';
        return $string;
	}