提问？

[koda123]

public void LoadFromXmlFile()//从xml文件读取信息
{
XmlTextReader reader;
if (File.Exists("BlockSet.xml"))
{ //优先读取外部BlockSet.xml文件并把信息写入blockInfo内
reader = new XmlTextReader("BlockSet.xml");
}
else
{ //如果BlockSet.xml文件不存在，则从嵌入资源内读取BlockInfo内
Assembly asm = Assembly.GetExecutingAssembly();
Stream sm = asm.GetManifestResourceStream("fangkuai.BlockSet.xml");
reader = new XmlTextReader(sm);
}
string key = "";
try
{
while (reader.Read())
{
if (reader.NodeType == XmlNodeType.Element)
{
if (reader.Name == "ID")
{
key = reader.ReadElementString().Trim();
info.Add(key, "");
}
else if (reader.Name == "Color")
{
info[key] = reader.ReadElementString().Trim();
}
else if (reader.Name == "DownKey")


红色部分说：未将对象引用设置到引用实例？为什么

[cppfaq]

嵌入资源里面没有包含相应的XML