运行结果能出来，但明显不对，下面是显示的情况：
Exiting: One or more of the residuals, duality gap, or total relative error
has stalled:
         the dual appears to be infeasible and the primal unbounded since
         the primal objective < -1e+10
         and the dual objective < 1e+6.

进一步在linprog函数中加入exitflag看是哪里出了问题，exitflag值为-3，表示Problem is unbounded.
请教大神这是什么原因造成的？该如何解决？万分感激