刪除xml對象中的相同標籤節點

例如，我想刪除所有價格標籤及其內容。刪除xml對象中的相同標籤節點

var xml:XML = <breakfast_menu> 
<food> 
<name>Belgian Waffles</name> 
<price>$5.95</price> 
<description> 
two of our famous Belgian Waffles with plenty of real maple syrup 
</description> 
<calories>650</calories> 
</food> 
<food> 
<name>Strawberry Belgian Waffles</name> 
<price>$7.95</price> 
<description> 
light Belgian waffles covered with strawberries and whipped cream 
</description> 
<calories>900</calories> 
</food> 
<food> 
<name>Berry-Berry Belgian Waffles</name> 
<price>$8.95</price> 
<description> 
light Belgian waffles covered with an assortment of fresh berries and whipped cream 
</description> 
<calories>900</calories> 
</food> 
<food> 
<name>French Toast</name> 
<price>$4.50</price> 
<description> 
thick slices made from our homemade sourdough bread 
</description> 
<calories>600</calories> 
</food> 
<food> 
<name>Homestyle Breakfast</name> 
<price>$6.95</price> 
<description> 
two eggs, bacon or sausage, toast, and our ever-popular hash browns 
</description> 
<calories>950</calories> 
</food> 
</breakfast_menu>

我使用刪除xml..price，沒有工作，刪除操作僅適用於第一級，我想從整個樹刪除標籤，有沒有一些簡單的方法來做到這一點？

來源

2012-10-25 Max

事實是deleting XML nodes in as3 is harder than it looks。那篇文章涵蓋了它的基礎知識。您基本上需要遍歷所有節點並delete他們逐一，使用數組語法。

你的情況：

//to select all price nodes: 
trace("—- xml..price —-"); 
trace(xml..price); 

trace("—- delete in loop —-"); 

//loop 
for each (var price:XML in xml..price) 
{ 
    //and delete each node! 
    delete xml..price[0]; 
} 

trace("—- after delete —-"); 
trace(xml);

而且輸出繼電器是：

—- xml..price —- 
<price>$5.95</price> 
<price>$7.95</price> 
<price>$8.95</price> 
<price>$4.50</price> 
<price>$6.95</price> 

—- delete in loop —- 

—- after delete —- 

<breakfast_menu> 
    <food> 
    <name>Belgian Waffles</name> 
    <description>two of our famous Belgian Waffles with plenty of real maple syrup</description> 
    <calories>650</calories> 
    </food> 
    <food> 
    <name>Strawberry Belgian Waffles</name> 
    <description>light Belgian waffles covered with strawberries and whipped cream</description> 
    <calories>900</calories> 
    </food> 
    <food> 
    <name>Berry-Berry Belgian Waffles</name> 
    <description>light Belgian waffles covered with an assortment of fresh berries and whipped cream</description> 
    <calories>900</calories> 
    </food> 
    <food> 
    <name>French Toast</name> 
    <description>thick slices made from our homemade sourdough bread</description> 
    <calories>600</calories> 
    </food> 
    <food> 
    <name>Homestyle Breakfast</name> 
    <description>two eggs, bacon or sausage, toast, and our ever-popular hash browns</description> 
    <calories>950</calories> 
    </food> 
</breakfast_menu>

希望這有助於！

xml..price.(delete parent().children()[valueOf().childIndex()]);

要通過名稱參數中刪除所有的節點，可以使這樣的功能：

function deleteAllTag(xml:XML, tag:String):void{ 
xml.descendants(tag).(delete parent().children()[valueOf().childIndex()]); 
}

和

來源

2012-10-25 09:23:31 danii

使用此唯一的刪除價格，你可以編寫一個函數來做到這一點嗎？我使用xml .. [tagName]，但flash無法編譯，並且每次使用delete xml..price [0 ]不是一個好方法，我想。 – Max

您也可以使用過濾器表達式做在一個線那麼：

deleteAllTag(xml, "price");

活的示例le at wonderfl：http://wonderfl.net/c/cHfy

來源

2012-10-25 09:45:16 Patrick

這很酷！ +1 –

同意，這是真棒，應該是被接受的答案 – danii

刪除xml對象中的相同標籤節點

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