c#读取xml文档

对应的xml文档如下:

<?xml version="1.0" encoding="utf-8" ?>
<Root>
<PerPrice type="H">
<PerPriceFor16>2.45</PerPriceFor16>
<PerPriceFor32>2.5</PerPriceFor32>
<PerPriceFor48>2.55</PerPriceFor48>
</PerPrice>

<PerPrice type="M">
<PerPriceFor16>1.85</PerPriceFor16>
<PerPriceFor32>1.9</PerPriceFor32>
<PerPriceFor48>1.95</PerPriceFor48>
</PerPrice>

<PerPrice type="L">
<PerPriceFor16>0.95</PerPriceFor16>
<PerPriceFor32>1.0</PerPriceFor32>
<PerPriceFor48>1.05</PerPriceFor48>
</PerPrice>

</Root>

如此读取

XmlDocument doc = new XmlDocument();
doc.Load(@"../../Data/PerPrice.xml");
var root = doc.SelectSingleNode("Root");
var childs = root.ChildNodes;

double[] tmp = new double[3];//声明一个长度为3的数组,以依次保存高中低端产品的单价-16路

{
int index = 0;
foreach (XmlNode xn in childs)
{
tmp[index] = double.Parse(xn.ChildNodes.Item(2).InnerText);
index++;
}
index = 0;
}

读取的结果应是:

2.55 1.95 1.05