ADD: 支持美股

us_stock_service.py

@@ -0,0 +1,52 @@
+import akshare as ak
+import pandas as pd
+import logging
+
+class USStockService:
+    def __init__(self):
+        logging.basicConfig(level=logging.INFO,
+                          format='%(asctime)s - %(levelname)s - %(message)s')
+        self.logger = logging.getLogger(__name__)
+        
+    def search_us_stocks(self, keyword):
+        """
+        搜索美股代码
+        :param keyword: 搜索关键词
+        :return: 匹配的股票列表
+        """
+        try:
+            # 获取美股数据
+            df = ak.stock_us_spot_em()
+
+            
+            # 转换列名
+            df = df.rename(columns={
+                "名称": "name",
+                "最新价": "price",
+                "涨跌额": "change",
+                "代码": "symbol",
+                "成交额": "volume",
+                "换手率": "turnover"
+            })
+            
+            # 模糊匹配搜索
+            mask = df['name'].str.contains(keyword, case=False, na=False)
+            results = df[mask].to_dict('records')
+            
+            # 格式化返回结果
+            formatted_results = []
+            for item in results:
+                formatted_results.append({
+                    'name': item['name'],
+                    'symbol': item['symbol'].replace('105.', ''),  # 移除前缀
+                    'price': item['price'],
+                    'change': item['change'],
+                    'volume': item['volume'],
+                    'turnover': item['turnover']
+                })
+                
+            return formatted_results
+            
+        except Exception as e:
+            self.logger.error(f"搜索美股代码时出错: {str(e)}")
+            raise Exception(f"搜索美股代码失败: {str(e)}")