fix the path str

x2paddle/core/program.py

@@ -518,7 +518,7 @@ class PaddleGraph(object):
             use_structured_name = False if self.source_type in ["tf"] else True
             self.run_func.extend(
                 gen_codes(["paddle.disable_static()",
-                           "params = paddle.load('{}/model.pdparams')".format(osp.abspath(code_dir)),
+                           "params = paddle.load('{}')".format(osp.join(osp.abspath(code_dir), "model.pdparams")),
                            "model = {}()".format(self.name),
                            "model.set_dict(params, use_structured_name={})".format(use_structured_name),
                            "model.eval()",

x2paddle/optimizer/pytorch_code_optimizer/hierachical_tree.py

@@ -388,7 +388,7 @@ class HierarchicalTree(Tree):
                 run_func_list.append("    # {}: shape-{}，type-{}。".format(k, v[0], v[1]))
             run_func_list.extend(
                 ["    paddle.disable_static()",
-                 "    params = paddle.load('{}/model.pdparams')".format(osp.abspath(save_dir)),
+                 "    params = paddle.load('{}')".format(osp.join(osp.abspath(save_dir), "model.pdparams")),
                  "    model = {}()".format(self.pd_graph.name),
                  "    model.set_dict(params)",
                  "    model.eval()",

x2paddle/optimizer/pytorch_code_optimizer/module_graph.py

@@ -354,7 +354,7 @@ class ModuleGraph(object):
                 run_func_list.append("    # {}: shape-{}，type-{}.".format(k, v[0], v[1]))
             run_func_list.extend(
                 ["    paddle.disable_static()",
-                 "    params = paddle.load('{}/model.pdparams')".format(osp.abspath(save_dir)),
+                 "    params = paddle.load('{}')".format(osp.join(osp.abspath(save_dir), "model.pdparams")),
                  "    model = {}()".format(self.pd_graph.name),
                  "    model.set_dict(params)",
                  "    model.eval()",