对偶单纯形法的迭代仍然是以为主元的旋转变换，但是它也有自己的特点。它是首先确定离开基的变量，即首先确定然后确定进入基的变量，即确定xk，一下就是求解单纯形法一例-Dual simplex method iteration is still the main element of the rotation transformation, but it also has its own characteristics. It is the first to leave the base to det