diff --git a/function.py b/function.py
index d9aa34f..c71b74c 100644
--- a/function.py
+++ b/function.py
@@ -90,6 +90,10 @@ if __name__ == "__main__":
     # 加载测试集
     X_test, y_test = load_data("./data/horse-colic.test")
 
+    # 确保标签为浮点型，以防止整型溢出
+    y_train = y_train.astype(float)
+    y_test = y_test.astype(float)
+
     # 训练对率回归模型
     weights = train_logreg(X_train, y_train, learning_rate=0.01, iterations=1000)