fix：修改新beta 自动处理文件路径不正确问题

jeecg-module-beta-gamma-analyser/src/main/java/org/jeecg/common/util/SelfBaseUtil.java

@@ -549,7 +549,7 @@ public class SelfBaseUtil extends AbstractLogOrReport {
      * @param g_counts ROI卡出来的Gamma数据
      */
     public static void createGammaFile(String pathName,String fileName, EnergySpectrumStruct struct, List<Long> g_counts) {
-        File file = new File(pathName + File.separator + fileName);
+        File file = new File(pathName + StrUtil.SLASH + fileName);
         // 创建PrintWriter对象
         PrintWriter out = null;
         DecimalFormat decimalFormat = new DecimalFormat("0.000000");