add common

codes/common/model.py

@@ -0,0 +1,27 @@
+#!/usr/bin/env python
+# coding=utf-8
+'''
+Author: John
+Email: johnjim0816@gmail.com
+Date: 2021-03-12 21:14:12
+LastEditor: John
+LastEditTime: 2021-03-12 21:28:46
+Discription: 
+Environment: 
+'''
+import torch.nn as nn
+import torch.nn.functional as F
+class MLP(nn.Module):
+    ''' 全连接网络'''
+    def __init__(self,state_dim):
+        super(MLP, self).__init__()
+        # 24和36为hidden layer的层数，可根据state_dim, n_actions的情况来改变
+        self.fc1 = nn.Linear(state_dim, 36)
+        self.fc2 = nn.Linear(36, 36)
+        self.fc3 = nn.Linear(36, 1)  # Prob of Left
+
+    def forward(self, x):
+        x = F.relu(self.fc1(x))
+        x = F.relu(self.fc2(x))
+        x = F.sigmoid(self.fc3(x))
+        return x