diff --git a/docs/processor.md b/docs/processor.md
index e787055..6042ad6 100644
--- a/docs/processor.md
+++ b/docs/processor.md
@@ -140,11 +140,11 @@
 
 ### 日志
 
-日志在标准异常流（`stderr`）输出，日志包含调试（`D`）、信息（`I`）、警告（`W`）、异常（`E`）、致命（`F`）五个等级，格式为时间、半回合号、等级和详细信息，随后尾随控制字符 LF（`\n`），即 `{year}-{month}-{day} {hour}:{minute}:{second} {halfturn_id} [{level}] {msg}\n`。例如
+日志在标准异常流（`stderr`）输出，日志包含调试（`D`）、信息（`I`）、警告（`W`）、异常（`E`）、致命（`F`）五个等级，格式为时间、等级和详细信息，随后尾随控制字符 LF（`\n`），即 `{year}-{month}-{day} {hour}:{minute}:{second} [{level}] {msg}\n`。例如
 
 ```plaintext
-2022-10-10 21:00:01 2 [W] discarded bad move(34 57E) from player 1: target is out of border.
-2022-10-10 21:00:01 2 [W] 已丢弃非法移动 (34 57E) 来自玩家 1: 目标格在边界外.
+2022-10-10 21:00:01 [W] discarded bad move(34 57E) from player 1: target is out of border.
+2022-10-10 21:00:01 [W] 已丢弃非法移动 (34 57E) 来自玩家 1: 目标格在边界外.
 ```
 
 #### 日志等级与编码
diff --git a/processor/utility/log.h b/processor/utility/log.h
new file mode 100644
index 0000000..1611ac2
--- /dev/null
+++ b/processor/utility/log.h
@@ -0,0 +1,27 @@
+#ifndef OG_LOG_H_
+#define OG_LOG_H_
+
+#include <cstdio>
+#include <string>
+#include "pc/commcode.h"
+
+class Logger {
+public:	
+	Logger *getInstance() const;
+
+	void debug(const std::string &) const;
+	void info(const std::string &) const;
+	void warn(const std::string &) const;
+	void error(const std::string &) const;
+	void fatal(const std::string &) const;
+
+private:
+	Logger();
+	void _log(LogLevel v, const std::string &) const;
+
+	LogLevel filter;
+};
+
+Logger *Log();
+
+#endif