SplMaxHeap / SplMInHeap 大排序
最后更新于：2022-04-02 02:26:10
[TOC]
## 实例
### SplMaxHelp 从大到小
```
$obj = new SplMaxHeap();
$obj->insert( 4 );
$obj->insert( 8 );
$obj->insert( 1 );
$obj->insert( 0 );
foreach( $obj as $number ) {
echo $number."\n";
}
//8
//4
//1
//0
```
### SplMinHelp 从小到大
```
$obj = new SplMinHeap();
$obj->insert( 4 );
$obj->insert( 8 );
$obj->insert( 1 );
$obj->insert( 0 );
foreach( $obj as $number ) {
echo $number."\n";
}
//0
//1
//4
//8
```
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