private string get_number_word()
{
string rtn = "";
if (cur_token == 'x' || cur_token == 'X')
{
rtn += cur_token;
get_src_token();
if (!char.IsDigit(cur_token) &&
!(cur_token <= 'f' && cur_token >= 'a') &&
!(cur_token <= 'F' && cur_token >= 'A'))
{
back_src_token();
error("错误的数字格式");
}
while (true)
{
rtn += cur_token;
get_src_token();
if (!char.IsDigit(cur_token) &&
!(cur_token <= 'f' && cur_token >= 'a') &&
!(cur_token <= 'F' && cur_token >= 'A'))
break;
}
return rtn;
}
else if (cur_token == 'b' || cur_token == 'B')
{
rtn += cur_token;
get_src_token();
if (cur_token != '1' && cur_token != '0')
{
back_src_token();
error("错误的数字格式");
}
while (true)
{
rtn += cur_token;
get_src_token();
if (cur_token != '1' && cur_token != '0')
break;
}
return rtn;
}
else if (cur_token == '#')
{
rtn += cur_token;
get_src_token();
}
if (!char.IsDigit(cur_token) && cur_token != '-')
if (cur_token == '\r' || cur_token == '\n')
error("指令不完整,需要数字");
else
error("错误的数字格式");
while (true)
{
rtn += cur_token;
get_src_token();
if (!char.IsDigit(cur_token))
break;
}
return rtn;
}