dll函数可以这样声明: [DllImport("Temperature.dll")]
public static extern bool TEM_Read(int hOpenContext,byte[] pBuffer,int Count);
public static extern bool TEM_Read(int hOpenContext,byte[] pBuffer,int Count);
{
int hOpenContext;
byte[] pBuffer=new byte[1024];
int Count=4;
bool rt;
rt=TEM_Read(hOpenContext,pBuffer,Count);
}你的代码不全,dll是cdecl还是stdcall方式调用也不知道,自己调试下.