public static void Save(IDictionary <DateTime, SolarTerm> data, string filename)
{
int i = 0;
byte[] solarTremBytes;
byte[] solarTremByte;
SolarTremStruct[] arr = new SolarTremStruct[data.Count];
int size = Marshal.SizeOf(typeof(SolarTremStruct));
solarTremBytes = new byte[size * arr.Length];
foreach (var solarTrem in data)
{
SolarTremStruct solarTremDateTime = new SolarTremStruct();
solarTremDateTime.dateTime = solarTrem.Key.ToBinary();
solarTremDateTime.solarTrem = (int)solarTrem.Value;
arr[i] = solarTremDateTime;
solarTremByte = Struct2Byte(arr[i]);
Array.Copy(solarTremByte, 0, solarTremBytes, i * size, solarTremByte.Length);
i++;
}
WriteInfo(solarTremBytes, filename);
}
private static SolarTremStruct Byte2Struct(byte[] arr)
{
int structSize = Marshal.SizeOf(typeof(SolarTremStruct));
IntPtr ptemp = Marshal.AllocHGlobal(structSize);
Marshal.Copy(arr, 0, ptemp, structSize);
SolarTremStruct rs = (SolarTremStruct)Marshal.PtrToStructure(ptemp, typeof(SolarTremStruct));
Marshal.FreeHGlobal(ptemp);
return(rs);
}
private static byte[] Struct2Byte(SolarTremStruct s)
{
int structSize = Marshal.SizeOf(typeof(SolarTremStruct));
byte[] buffer = new byte[structSize];
IntPtr structPtr = Marshal.AllocHGlobal(structSize); //分配结构体大小的内存空间
Marshal.StructureToPtr(s, structPtr, false); //将结构体拷到分配好的内存空间
Marshal.Copy(structPtr, buffer, 0, structSize); //从内存空间拷到byte数组
Marshal.FreeHGlobal(structPtr); //释放内存空间
return(buffer);
}
public static IDictionary <DateTime, SolarTerm> Load(string filename)
{
IDictionary <DateTime, SolarTerm> res = new Dictionary <DateTime, SolarTerm>();
byte[] bt = ReadInfo(filename);
int size = Marshal.SizeOf(typeof(SolarTremStruct));
int num = bt.Length / size;
for (int i = 0; i < num; i++)
{
byte[] temp = new byte[size];
Array.Copy(bt, i * size, temp, 0, size);
SolarTremStruct solar = new SolarTremStruct();
solar = Byte2Struct(temp);
res.Add(DateTime.FromBinary(solar.dateTime), (SolarTerm)solar.solarTrem);
}
return(res);
}
