diff --git a/calculator.py b/calculator.py
index cde2a39..b5601e1 100644
--- a/calculator.py
+++ b/calculator.py
@@ -1,11 +1,10 @@
-from pagermaid import version
 from pagermaid.listener import listener
 from pagermaid.utils import attach_log, execute, alias_command
 
 
 @listener(is_plugin=False, outgoing=True, command=alias_command("cal"),
-          description="计算",
-          parameters="<加减乘除>")
+          description="计算\n示例：\n`-cal 1+1`加法\n`-cal 2-1`减法\n`-cal 1*2`乘法\n`-cal 4/2`除法\n`-cal 4^2`幂运算\n`-cal sqrt(4)`开方",
+          parameters="<基本运算>")
 async def cal(context):
     command = context.arguments
     if context.is_channel and not context.is_group:
@@ -28,3 +27,31 @@ async def cal(context):
         await context.edit(f"{command}=\n`{result}`")
     else:
         return
+
+@listener(is_plugin=False, outgoing=True, command=alias_command("con"),
+            description="换算\n示例：\n`-con 2 99`将99转换为2进制",
+            parameters="<进制(数字)> <数值>")
+async def con(context):
+    command = context.arguments.split()
+    if context.is_channel and not context.is_group:
+        await context.edit("`出错了呜呜呜 ~ 当前 PagerMaid-Modify 的配置禁止在频道中执行此命令。`")
+        return
+
+    if not command:
+        await context.edit("`出错了呜呜呜 ~ 无效的参数。`")
+        return
+
+    obase = command[0].upper().strip()
+    num = command[1].upper().strip()
+    await context.edit(f"{num}")
+    cmd = f'echo "obase={obase};{num}" | bc'
+    result = await execute(cmd)
+
+    if result:
+        if len(result) > 4096:
+            await attach_log(result, context.chat_id, "output.log", context.id)
+            return
+
+        await context.edit(f"{num}=\n`{result}`\n{obase}进制")
+    else:
+        return
\ No newline at end of file
diff --git a/list.json b/list.json
index b9dd0d6..bcd79bb 100644
--- a/list.json
+++ b/list.json
@@ -332,13 +332,13 @@
         },
         {
             "name": "calculator",
-            "version": "1.021",
+            "version": "1.1",
             "section": "chat",
-            "maintainer": "Pentacene",
-            "size": "1.0 kb",
+            "maintainer": "Pentacene,zhxycn",
+            "size": "1.48 kb",
             "supported": true,
             "des-short": "小型计算器",
-            "des": "/cal 6+4。"
+            "des": "支持基本运算（加减乘除乘方开方）及进制转换。\n命令：-cal [表达式] -con [进制] [数字]\n例如：`-cal 1+2` `-con 16 10`"
         },
         {
             "name": "paolu",