已知实数x,y满足约束条件{0≤y;0≤ x-y;0≤2x-y-2 }则z=y-1/x 1 已知实数x,y满足约束条件{0≤y;0≤ x-y;0≤2x-y-2 }则z=y-1/x 1 发布时间:2025-05-09 20:43:01