我正在学习这个示例教程项目代码:http://akrabat.com/wp-content/uploads/zf-tutorial-layoutform.zip教程:http://akrabat.com/zend-framework/a-form-in-your-layout/项目代码按预期运行，直到我向表单添加哈希元素。我所做的就是在application/forms/Signup.php下的表单中添加此代码$hash=newZend_Form_Element_Hash('hash');$hash->setSalt('mysalt');$this->addElement($hash)