private void TGlobal()
{
skip_space();
string word = get_word().ToUpper();
#if debug
Debug("got tglobal: " + word);
#endif
//添加word至.global声明过的符号列表中
if (dataTable.Contains(word.ToUpper() ) )
error(string.Format("符号{0}已经在data段声明过,不能重复!", word));
if (global_symbol_tmp.ContainsKey(word.ToUpper()))
error(string.Format("符号{0}已经被声明过Global,不能重复声明"));
global_symbol_tmp.Add(word.ToUpper(),new row_colum(line,line_at ));
format_line.Append(word.ToUpper());
}