<php>
    /*可以加多个方法哟！*/
    if (!function_exists('_sp_helloworld')) {
        function _sp_helloworld(){
        echo "hello ThinkCMF!";
        }
    }

    if (!function_exists('_sp_helloworld2')) {
        function _sp_helloworld2(){
        echo "hello ThinkCMF2!";
        }
    }

    if (!function_exists('_sp_helloworld3')) {
        function _sp_helloworld3(){
        echo "hello ThinkCMF3!";
        }
    }
</php>