Fix: roll back #170 and fix bug in api /tools/random_example (#177)

Author: jiangyuxiaoxiao

server.py

@@ -50,7 +50,7 @@ def wav2(i, o, format):
 # 加载模型
 models = config.server_config.models
 for model in models:
-    hps_List.append(utils.get_hparams_from_file(model["config_path"]))
+    hps_List.append(utils.get_hparams_from_file(model["config"]))
     # 添加角色字典
     chrsMap.append(dict())
     for name, cid in hps_List[-1].data.spk2id.items():

server_fastapi.py

@@ -163,7 +163,7 @@ def get_models(self):
     models_info = config.server_config.models
     for model_info in models_info:
         loaded_models.init_model(
-            config_path=model_info["config_path"],
+            config_path=model_info["config"],
             model_path=model_info["model"],
             device=model_info["device"],
             language=model_info["language"],
@@ -550,7 +550,7 @@ def random_example(
             examples = all_examples[root_dir]
 
             # 从项目Data目录中搜索train/val.list
-            for root, directories, _files in os.walk("Data"):
+            for root, directories, _files in os.walk(root_dir):
                 for file in _files:
                     if file in ["train.list", "val.list"]:
                         with open(