本系统是根据科汛系统编写的程序，程序和科汛原代码有出入，但是功能是完全一样的，由于标签系统比较麻烦所以暂时没有开发，所以在发布栏目供求列表时必须使用 SQL标签 -The system is based on the preparation of Kesion system procedures, procedures and Kesion different from the original code, but the function is exactly the same, as the label system is too much trouble so there is no development, supply and demand in the release list of columns must use the SQL tab