/*1.把html用单引号引起来用echo 输出,
 * echo '<form action="search.php" method="post" name="" id="">';
echo  '<input name="search" type="text" id="search"/>';
echo '<input name="Submit" type="submit" value="搜索" />' ;
echo "</form>";
*/

//2，用点号拼接起来然后统一用echo 输出,
//$data='<form action="search.php" method="post" name="" id="">';
//$data.='<input name="search" type="text" id="search"/>';
//$data.='<input name="Submit" type="submit" value="搜索" />';
//$data.="</form>";
//echo $data;

//3，下边方法最简单直接在 头 echo <<< EOT  在尾 EOT; 即可 注意头尾独占一行
/*echo <<< EOT
 <form action="search.php" method="post" name="" id="">
     <input name="search" type="text" id="search"/>
     <input name="Submit" type="submit" value="搜索" />
  </form>
EOT;*/