效用函数与最优消费

def solve(____):
    a, b = utility_func
    x_opt = a * income / ((____) * px)
    y_opt = b * income / ((____) * py)
    u_max = (____) * (____)
    return {"____": utility_func, "____": round(____), "____": round(____), "____": round(____)}