diff --git a/src/DataProcessWorkPool.cpp b/src/DataProcessWorkPool.cpp
index 18238af..e5b8d6d 100644
--- a/src/DataProcessWorkPool.cpp
+++ b/src/DataProcessWorkPool.cpp
@@ -769,7 +769,7 @@ bool EnergyScaleParticleDataTask::processTask()
         project_model->SetParticleEnergyDataFilename(energy_spectrum_filename);
     } catch (const std::exception& e) {
         out.close();
-        std::remove(QStrToSysPath(energy_spectrum_filename));
+        std::remove(QStrToSysPath(energy_spectrum_filename).c_str());
         const QString& e_what = QString::fromStdString(e.what());
         LOG_WARN(QStringLiteral(u"能谱数据处理异常:%1").arg(e_what));
         return false;
@@ -842,7 +842,7 @@ bool EnergyCountProcessTask::processTask()
             project_model->SetChannelEnergyCountDataFilename(channel_num, ch_out_filename);
         } catch (const std::exception& e) {
             ch_out.close();
-            std::remove(QStrToSysPath(ch_out_filename));
+            std::remove(QStrToSysPath(ch_out_filename).c_str());
             const QString& e_what = QString::fromStdString(e.what());
             LOG_WARN(QStringLiteral(u"%1能量计数异常:%2").arg(channel_name).arg(e_what));
         }
diff --git a/src/GlobalDefine.h b/src/GlobalDefine.h
index f3d699a..d30acec 100644
--- a/src/GlobalDefine.h
+++ b/src/GlobalDefine.h
@@ -8,9 +8,9 @@
 #include <QDebug>
 
 // 转换Qt字符串路径为系统编码的C字符串（解决中文路径问题）
-static const char* QStrToSysPath(const QString& qstr_path)
+static std::string QStrToSysPath(const QString& qstr_path)
 {
-    std::string sys_path; // 静态变量避免内存释放
+    std::string sys_path;
 #ifdef Q_OS_WIN
     // Windows：转为GBK编码
     QTextCodec* gbkCodec = QTextCodec::codecForName("GBK");
@@ -20,7 +20,7 @@ static const char* QStrToSysPath(const QString& qstr_path)
     // Linux/Mac：转为UTF-8编码
     sys_path = qstr_path.toUtf8().toStdString();
 #endif
-    return sys_path.c_str();
+    return sys_path;
 }
 
 static int ExtractNumberFromString(const QString& str) {