W_A_R_N_I_N_G: The solution has not converged after   1 iterations.
                The following solution is preliminary and is provided only
                for the purpose of tracing the source of the problem.
                Setting IT>  1 may solve the problem.
我的结果是这样的，调了很多次数据都是讲的这个迭代次数的问题，请问我应该在哪里 修改迭代次数啊？
麻烦哪位高人赐教~