function getSumOfArrayRange($array:Array, $indexStart:int, $indexLength:int):Number {
var rangeTotal:Number = 0;
if ($indexStart + $indexLength > $array.length) {
$indexLength = $array.length - $indexStart;
}
for (var i:int = 0; i<$indexLength; i++) {
rangeTotal += Number($array[i+$indexStart]);
}
return rangeTotal;
}
var myArray:Array = [10,21,32,43,54,65,76];
var sumOfRange:Number = getSumOfArrayRange(myArray, 1, 3);
trace("sumOfRange: "+sumOfRange);
// OUTPUT
// sumOfRange: 96
// In this example, the following values were added together ...
// 21 + 32 + 43
AS3在数组中添加一系列值
ActionScript3
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