修改实例化关系

yzg-util-base/src/main/java/com/yanzuoguang/util/helper/FormulaHelper.java

@@ -18,11 +18,11 @@ public class FormulaHelper {
 
     private static final String REGEX_DOUBLE = "^[-+]?[0-9]*\\.?[0-9]+$";
     private static final String REGEX_QUOT = "(^.*?)\\((.+?)\\)(.*?$)";
-    private static final String REGEX_CALC_ADD_PLUS = "(^.*?)([+\\-])(.*?$)";
+    private static final String REGEX_CALC_ADD_PLUS = "(^.*)([+\\-])(.*?$)";
     private static final String REGEX_CALC_MULTIPLY_MOD = "(^.*?)([*/])(.*?$)";
     private static final String REGEX_CALC_TAG = "[+\\-*/()]+";
     private static final String EMPTY_CHAR = " ";
-    public static String TEMP_VAR_NAME = "@temp";
+    private static final String TEMP_VAR_NAME = "@temp";
 
     private static FormulaHelper calcInstance = new FormulaHelper();
 
@@ -49,7 +49,7 @@ public class FormulaHelper {
     public static final int getExcelIndex(String columnName) {
         columnName = columnName.toLowerCase();
         if (!columnName.matches("^[a-z]+$")) {
-            throw YzgError.getRuntimeException("013",columnName);
+            throw YzgError.getRuntimeException("013", columnName);
         }
         // 从名称转换列序号
         int formulaColumnIndex = 0;

yzg-util-base/src/test/java/helper/TestFormulaHelper.java

@@ -24,6 +24,13 @@ public class TestFormulaHelper {
         }));
     }
 
+    @Test
+    public void testMul() {
+        // System.out.println(FormulaHelper.calc("(100-0)-2"));
+        System.out.println(FormulaHelper.calc("100-0-2"));
+    }
+
+
     @Test
     public void test1() {