diff --git a/spread_backtest.py b/spread_backtest.py
index 86aaaa4..bf2c999 100644
--- a/spread_backtest.py
+++ b/spread_backtest.py
@@ -8,7 +8,7 @@ from rich import print as rprint
 from rich.table import Table
 
 
-class Spread_Backtest():
+class SpreadBacktest():
     def __init__(
         self, 
         trader: Trader
diff --git a/trader.py b/trader.py
index 8f580cf..1bac6b2 100644
--- a/trader.py
+++ b/trader.py
@@ -36,6 +36,7 @@ class Trader(Account):
         exclude_list (list):                额外的剔除列表，会优先满足该剔除列表中的条件，之后再进行正常的调仓
             - abnormal: 异常公告剔除，包含中止上市、立案调查、警示函等异常情况的剔除
             - report: 财报同比下降50%以上剔除
+        account (Account):                  账户设置，account.Account
     """
     def __init__(self, 
                  signal: Dict[str, pd.DataFrame]=None,
@@ -57,9 +58,10 @@ class Trader(Account):
                      '2023-08-28': (0, 0.0005)
                  },
                  exclude_list: list=[],
+                 account: dict={},
                  **kwargs) -> None:
         # 初始化账户
-        super().__init__(**kwargs.get('account', {}))
+        super().__init__(account)
         if isinstance(signal, dict):
             self.signal = signal
             if 'close' in signal:
@@ -71,6 +73,8 @@ class Trader(Account):
         # --------------------
         # 参数检验
         # --------------------
+        if len(kwargs) > 0:
+            raise ValueError(f"Unexpected keyword argument '{','.join(kwargs.keys())}'")
         # interval
         self.interval = []
         for s in signal: