actionscript数组删除元素

Question

我有一个包含10个元素的数组项。我需要删除第5个元素（index = 4） 新数组应该有9个元素，第5个元素之后的所有元素都将向前移动

我应该使用哪些命令？

Answer 1

Splice

http://livedocs.adobe.com/flash/9.0/ActionScriptLangRefV3/Array.html#splice%28%29

var vegetables:Array = new Array("spinach",
             "green pepper",
             "cilantro",
             "onion",
             "avocado");

var spliced:Array = vegetables.splice(2, 2);
trace(vegetables); // spinach,green pepper,avocado
trace(spliced);    // cilantro,onion

vegetables.splice(1, 0, spliced);
trace(vegetables); // spinach,cilantro,onion,green pepper,avocado