message: update cpp-module examples.
diff: @@ -42,16 +42,27 @@ function test2()
  $module = swoole_load_module(__DIR__.'/test.so');
  -$r = cpp_hello_world(1234, 456, 789);
  +function php_hello_world()
  +{
  + $arr = func_get_args();
  + return 3.1415926;
  +}
  +
  +$r = cpp_test(1234, 456, 789);
  var_dump($r);
  +return;
  +$n = 1000000;
  $s = microtime(true);
  -for($i =0; $i< 1; $i++)
  +for($i =0; $i< $n; $i++)
  {
  //$ret = swoole_strerror(11);
  - $ret = cpp_test("abc", 1234, 459.55, "hello");
  + $ret = cpp_hello_world("abc", 1234, 459.55, "hello");
  + //$ret = str_pad("i", 1, "p", STR_PAD_BOTH);
  }
  -echo "use ".(microtime(true) - $s)."s\n";
  +$use = (microtime(true) - $s);
  +echo "use ".$use."s\n";
  +echo "QPS=".number_format($n/$use)."\n";
  var_dump($ret);
  //sleep(1000);
  