标题不解释这是什么，但我真的不知道该放什么;
代码工作我只是想知道是否有更好的方法。
<?xml version="1.0" encoding="UTF-8"?>
-<evec_api method="marketstat_xml" version="2.0">
-<marketstat>
-<type id="34">
-<buy>
<volume>3457195520</volume>
<avg>5.44</avg>
<max>5.83</max>
<min>4.18</min>
<stddev>0.61</stddev>
<median>5.51</median>
<percentile>5.82</percentile>
</buy>
-<sell>
<volume>3243443787</volume>
<avg>6.47</avg>
<max>15.82</max>
<min>5.87</min>
<stddev>1.80</stddev>
<median>6.20</median>
<percentile>6.05</percentile>
</sell>
-<all>
<volume>6800639307</volume>
<avg>5.86</avg>
<max>15.82</max>
<min>0.20</min>
<stddev>1.87</stddev>
<median>5.82</median>
<percentile>3.60</percentile>
</all>
</type>
-<type id="35">
-<buy>
<volume>616253967</volume>
<avg>9.98</avg>
<max>10.70</max>
<min>6.34</min>
<stddev>1.24</stddev>
<median>10.48</median>
<percentile>10.70</percentile>
</buy>
-<sell>
<volume>657965395</volume>
<avg>14.21</avg>
<max>24.00</max>
<min>11.44</min>
<stddev>6.01</stddev>
<median>11.68</median>
<percentile>11.44</percentile>
</sell>
-<all>
<volume>1274219362</volume>
<avg>12.17</avg>
<max>24.00</max>
<min>6.34</min>
<stddev>6.14</stddev>
<median>11.44</median>
<percentile>7.82</percentile>
</all>
</type>
-<type id="36">
-<buy>
<volume>322291783</volume>
<avg>53.35</avg>
<max>56.00</max>
<min>38.26</min>
<stddev>4.23</stddev>
<median>55.25</median>
<percentile>55.99</percentile>
</buy>
-<sell>
<volume>580953174</volume>
<avg>63.29</avg>
<max>89.40</max>
<min>59.00</min>
<stddev>7.81</stddev>
<median>60.44</median>
<percentile>59.60</percentile>
</sell>
-<all>
<volume>903244957</volume>
<avg>59.74</avg>
<max>89.40</max>
<min>38.26</min>
<stddev>8.48</stddev>
<median>59.82</median>
<percentile>43.37</percentile>
</all>
</type>
-<type id="37">
-<buy>
<volume>147215461</volume>
<avg>92.36</avg>
<max>96.68</max>
<min>38.40</min>
<stddev>13.23</stddev>
<median>96.64</median>
<percentile>96.67</percentile>
</buy>
-<sell>
<volume>213867507</volume>
<avg>114.33</avg>
<max>280.00</max>
<min>100.00</min>
<stddev>40.85</stddev>
<median>102.29</median>
<percentile>100.93</percentile>
</sell>
-<all>
<volume>371082968</volume>
<avg>102.82</avg>
<max>280.00</max>
<min>10.64</min>
<stddev>40.74</stddev>
<median>100.97</median>
<percentile>47.42</percentile>
</all>
</type>
-<type id="38">
-<buy>
<volume>37059521</volume>
<avg>438.61</avg>
<max>456.73</max>
<min>355.00</min>
<stddev>32.35</stddev>
<median>452.53</median>
<percentile>456.73</percentile>
</buy>
-<sell>
<volume>41961165</volume>
<avg>536.59</avg>
<max>650.00</max>
<min>469.00</min>
<stddev>54.90</stddev>
<median>513.63</median>
<percentile>469.00</percentile>
</sell>
-<all>
<volume>79020686</volume>
<avg>490.64</avg>
<max>650.00</max>
<min>355.00</min>
<stddev>68.43</stddev>
<median>469.00</median>
<percentile>379.86</percentile>
</all>
</type>
-<type id="39">
-<buy>
<volume>17527906</volume>
<avg>1011.91</avg>
<max>1267.00</max>
<min>751.00</min>
<stddev>163.64</stddev>
<median>991.85</median>
<percentile>1266.25</percentile>
</buy>
-<sell>
<volume>11084558</volume>
<avg>1472.06</avg>
<max>1899.00</max>
<min>1428.98</min>
<stddev>87.97</stddev>
<median>1470.38</median>
<percentile>1428.98</percentile>
</sell>
-<all>
<volume>31612464</volume>
<avg>1101.04</avg>
<max>1899.00</max>
<min>251.01</min>
<stddev>259.73</stddev>
<median>1182.01</median>
<percentile>251.01</percentile>
</all>
</type>
-<type id="40">
-<buy>
<volume>11218433</volume>
<avg>991.80</avg>
<max>1110.04</max>
<min>876.01</min>
<stddev>83.77</stddev>
<median>969.94</median>
<percentile>1110.03</percentile>
</buy>
-<sell>
<volume>13324678</volume>
<avg>1298.68</avg>
<max>1842.00</max>
<min>1199.97</min>
<stddev>140.89</stddev>
<median>1228.95</median>
<percentile>1205.26</percentile>
</sell>
-<all>
<volume>24543111</volume>
<avg>1158.41</avg>
<max>1842.00</max>
<min>876.01</min>
<stddev>175.90</stddev>
<median>1206.00</median>
<percentile>888.68</percentile>
</all>
</type>
-<type id="11399">
-<buy>
<volume>383592</volume>
<avg>9206.37</avg>
<max>11045.43</max>
<min>5510.66</min>
<stddev>1680.48</stddev>
<median>9100.05</median>
<percentile>11016.97</percentile>
</buy>
-<sell>
<volume>420217</volume>
<avg>11902.63</avg>
<max>17183.99</max>
<min>11150.99</min>
<stddev>1956.07</stddev>
<median>11488.00</median>
<percentile>11150.99</percentile>
</sell>
-<all>
<volume>803809</volume>
<avg>10615.93</avg>
<max>17183.99</max>
<min>5510.66</min>
<stddev>2169.53</stddev>
<median>11150.99</median>
<percentile>5513.25</percentile>
</all>
</type>
</marketstat>
</evec_api>
正如您所看到的那样，我使用API链接来获取我想要减少的XML文件＆＃34;但它拥有多个ID节点，我需要分离并从中获取元素值并将该值放入文本/标签框中。目前我这样做（见代码）。它很乱，让我很紧张。有没有更好的办法？？或者我说这一切都错了？
对于那些不想在此处加载网络链接的人来说，这是：
{{1}}
答案 0 :(得分：2)
不，不要这样做。这太可怕了。 您应该使用.NET中已有的Serialization组件。
这是一个了不起的example
<AddressDetails>
<HouseNo>4</HouseNo>
<StreetName>Rohini</StreetName>
<City>Delhi</City>
</AddressDetails>
public class AddressDetails
{
[XmlElement("Number")]
public int HouseNo { get; set; }
[XmlElement("Street")]
public string StreetName { get; set; }
[XmlElement("CityName")]
}
public static void Main(string[] args)
{
AddressDetails details = new AddressDetails();
details.HouseNo = 4;
details.StreeName = "Rohini";
details.City = "Delhi";
Serialize(details);
}
static public void Serialize(AddressDetails details)
{
XmlSerializer serializer = new XmlSerializer(typeof(AddressDetails));
using (TextWriter writer = new StreamWriter(@"C:\Xml.xml"))
{
serializer.Serialize(writer, details);
}
}
答案 1 :(得分：1)
在我看来，您只需要将代码重构为一些小帮助方法，并在设置文本框时使用它们。例如，这样的东西可以让你根据id，交易类型（买入或卖出）和统计类型（max，min，avg等）从xml轻松获得任何类型的stat值：
enum TranType { Buy, Sell, All };
enum StatType { Volume, Avg, Max, Min, StdDev, Median, Percentile };
private static string GetStat(XmlDocument xdoc, int id, TranType tranType, StatType statType)
{
string xpath = string.Format("/evec_api/marketstat/type[@id = {0}]/{1}/{2}",
id, tranType.ToString().ToLower(), statType.ToString().ToLower());
return GetFirstElementText(xdoc, xpath);
}
private static string GetFirstElementText(XmlDocument xdoc, string xpath)
{
// Get the InnerText of the first XmlElement matching the xpath, if any (otherwise null)
return xdoc.SelectNodes(xpath).Cast<XmlElement>().Select(x => x.InnerText).FirstOrDefault();
}
注意：您需要在代码顶部添加using System.Linq;（如果您还没有），以便这些辅助方法能够正常工作。
使用这些辅助方法，您可以设置如下文本框：
string OrePrice = "http://api.eve-central.com/api/marketstat?typeid=34&minQ=1&typeid=35&minQ=1&typeid=36&minQ=1&typeid=37&minQ=1&typeid=38&minQ=1&typeid=39&minQ=1&typeid=40&minQ=1&typeid=11399&minQ=1&usesystem=30002187";
XmlDocument xdoc = new XmlDocument();
xdoc.Load(OrePrice);
TriPrAmarB.Text = GetStat(xdoc, 34, TranType.Buy, StatType.Max);
TriPrAmarS.Text = GetStat(xdoc, 34, TranType.Sell, StatType.Max);
PyrPrAmarB.Text = GetStat(xdoc, 35, TranType.Buy, StatType.Max);
PyrPrAmarS.Text = GetStat(xdoc, 35, TranType.Sell, StatType.Max);
MexPrAmarB.Text = GetStat(xdoc, 36, TranType.Buy, StatType.Max);
MexPrAmarS.Text = GetStat(xdoc, 36, TranType.Sell, StatType.Max);
IsoPrAmarB.Text = GetStat(xdoc, 37, TranType.Buy, StatType.Max);
IsoPrAmarS.Text = GetStat(xdoc, 37, TranType.Sell, StatType.Max);
NocPrAmarB.Text = GetStat(xdoc, 38, TranType.Buy, StatType.Max);
NocPrAmarS.Text = GetStat(xdoc, 38, TranType.Sell, StatType.Max);
MegPrAmarB.Text = GetStat(xdoc, 40, TranType.Buy, StatType.Max);
MegPrAmarS.Text = GetStat(xdoc, 40, TranType.Sell, StatType.Max);
这是一个简短的演示（控制台应用）：https://dotnetfiddle.net/RlUCEq