復制代碼 代碼如下:

$a = "hello";
$b = &$a;
unset($b);
$b = "world";
echo $a;

復制代碼 代碼如下:

$a = 1;
$x = &$a;
$b = $a++;
echo $b;

復制代碼 代碼如下:

function step(a){
return function(x){
return x+a++;
}
}

var a = step(10);
var b = step(20);
alert(a(10));
alert(b(20));
var a="123abc";
alert(typeof(a++));
alert(a);