diff --git a/cal_date.py b/cal_date.py
new file mode 100644
index 0000000..775db91
--- /dev/null
+++ b/cal_date.py
@@ -0,0 +1,140 @@
+import tushare as ts
+from sqlalchemy import create_engine, text
+from datetime import datetime
+import sys
+
+# =======================
+# 1. 日期校验（YYYYMMDD）
+# =======================
+def validate_dates(start_str, end_str):
+    start_str = start_str.strip()
+    end_str = end_str.strip()
+
+    if len(start_str) != 8 or len(end_str) != 8:
+        print(f"❌ 日期格式错误，应为 YYYYMMDD: {start_str}, {end_str}")
+        sys.exit(1)
+
+    if not (start_str.isdigit() and end_str.isdigit()):
+        print("❌ 日期必须为纯数字")
+        sys.exit(1)
+
+    try:
+        start = datetime.strptime(start_str, "%Y%m%d")
+        end = datetime.strptime(end_str, "%Y%m%d")
+    except Exception as e:
+        print(f"❌ 日期解析失败: {e}")
+        sys.exit(1)
+
+    if start > end:
+        print("❌ 开始时间不能大于结束时间")
+        sys.exit(1)
+
+    return start_str, end_str
+
+
+# =======================
+# 2. 创建数据库连接（解决 % 编码问题）
+# =======================
+def get_engine():
+    engine = create_engine(
+        "mysql+pymysql://yangfan@8.159.129.156:10836/level?charset=utf8mb4",
+        connect_args={
+            "password": "aA%8023321088"
+        },
+        pool_pre_ping=True
+    )
+    return engine
+
+
+# =======================
+# 3. 确保表存在
+# =======================
+def ensure_table(engine):
+    sql = """
+    CREATE TABLE IF NOT EXISTS trade_calendar (
+        cal_date DATE NOT NULL,
+        exchange VARCHAR(10) NOT NULL,
+        is_open TINYINT,
+        pretrade_date DATE,
+        PRIMARY KEY (cal_date, exchange)
+    ) CHARSET=utf8mb4;
+    """
+
+    # 防止隐藏乱码字符
+    sql = sql.encode("utf-8", "ignore").decode("utf-8")
+
+    with engine.begin() as conn:
+        conn.execute(text(sql))
+
+    print("✅ 表检查完成")
+
+
+# =======================
+# 4. 主逻辑
+# =======================
+def run(start_date, end_date, token):
+    start_date, end_date = validate_dates(start_date, end_date)
+
+    ts.set_token(token)
+    pro = ts.pro_api()
+
+    engine = get_engine()
+
+    ensure_table(engine)
+
+    print(f"📅 获取交易日历: {start_date} ~ {end_date}")
+
+    try:
+        df = pro.trade_cal(
+            exchange="",
+            start_date=start_date,
+            end_date=end_date
+        )
+    except Exception as e:
+        print(f"❌ 获取数据失败: {e}")
+        return
+
+    if df is None or df.empty:
+        print("⚠️ 无数据")
+        return
+
+    records = []
+    for _, row in df.iterrows():
+        try:
+            records.append({
+                "cal_date": datetime.strptime(row["cal_date"], "%Y%m%d").date(),
+                "exchange": row["exchange"],
+                "is_open": int(row["is_open"]),
+                "pretrade_date": (
+                    datetime.strptime(row["pretrade_date"], "%Y%m%d").date()
+                    if row["pretrade_date"] else None
+                )
+            })
+        except Exception as e:
+            print(f"⚠️ 数据解析异常: {row} -> {e}")
+            continue
+
+    sql = text("""
+    INSERT INTO trade_calendar (cal_date, exchange, is_open, pretrade_date)
+    VALUES (:cal_date, :exchange, :is_open, :pretrade_date)
+    ON DUPLICATE KEY UPDATE
+        is_open = VALUES(is_open),
+        pretrade_date = VALUES(pretrade_date)
+    """)
+
+    with engine.begin() as conn:
+        conn.execute(sql, records)
+
+    print(f"✅ 写入完成，共 {len(records)} 条")
+
+
+# =======================
+# 5. 程序入口（只改这里）
+# =======================
+if __name__ == "__main__":
+    START_DATE = "20240101"
+    END_DATE   = "20260423"
+
+    TUSHARE_TOKEN = "0fad3cf498757089e2630028455d5bbe1637475788bcdaa1f2175e93"
+
+    run(START_DATE, END_DATE, TUSHARE_TOKEN)
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