public bool dizUpdateField(int fid, string fieldname, string fielddata = "")
{
if (fielddata == "")
{
return(Luna.dizUpdateField(fid, fieldname, (IntPtr)0));
}
IntPtr ptr = MallocIntptr(fielddata);
ptr = ptr + 4;//将内存指针位置加 4 以兼容易语言内存操作模式
return(Luna.dizUpdateField(fid, fieldname, (IntPtr)0));
}