odbc_num_fields函数是一个相当不错的函数,它只接受结果集,并会告诉您结果集中的行数。
Result the counter was made by oneself of refinement, exactness, convenience and nice function. Conclusion This counter is of great applicable value in the functional experiments.结果自制的尿滴计数器制作精巧,计数精确,使用方便,实验性能好。
In the processing function, you get a pointer to the YYLTYPE structure holding the location, and you can generate a nice error message.在处理函数中,我们获得了一个指向保存了位置信息的YYLTYPE结构的指针,这样可以生成一条很好的错误消息。