在 mujoco 环境下实现 PPO算法，如Ant -v2、Humanoid-v2、Hopper-v2、Halfcheeth-v

# PPO-pytorch-Mujoco Implement PPO algorithm on mujoco environment，such as Ant-v2, Humanoid-v2, Hopper-v2, Halfcheeth-v2. ## Requirements - python 3.7.6 - gym 0.17.6 - mujoco_py 2.0.2.10 - pytorch ## Usage ``` $ python main.py --env_name Hopper-v2 ``` ## Results ### Hopper-v2  ### Humanoid-v2  ### Halfcheetah-v2  ### Ant-v2