fix the prelu for caffe

x2paddle/op_mapper/caffe_op_mapper.py

@@ -467,6 +467,11 @@ class CaffeOpMapper(OpMapper):
         data = node.data
         assert data is not None, 'The parameter of {} (type is {}) is not set. You need to use python package of caffe to set the default value.'.format(
             node.layer_name, node.layer_type)
+        import paddle
+        pd_version = paddle.__version__
+        if pd_version.startswith("1.8.4") or pd_version.startswith("1.8.3"):
+            self.weights[node.layer_name + '_weights'] = data[0].reshape(1, -1)
+        else:
             self.weights[node.layer_name + '_weights'] = data[0]
         attr = {
             'mode': string(mode),