1.星期计算bug修改

zs-manager/src/main/java/com/ruoyi/zhushi/util/CalendarGenerator.java

 import java.util.*;
 
 public class CalendarGenerator {
-
+    public static void main(String[] args) {
+        System.out.println(getMonthDays("2025-07","cn"));
+    }
     public static List<DayInfo> getMonthDays(String yearMonth, String language) {
         List<DayInfo> dayInfoList = new ArrayList<>();
         LocalDate startDate = LocalDate.parse(yearMonth + "-01", DateTimeFormatter.ofPattern("yyyy-MM-dd"));
         String[] cn = {"一", "二", "三", "四", "五", "六", "日"};
         String[] jp = {"月", "火", "水", "木", "金", "土", "日"};
 
-        int index = dayOfWeek.getValue() % 7; // 周日是7，但我们希望它在最后一位
-
+        int index = dayOfWeek.getValue() - 1;
         if ("jp".equalsIgnoreCase(language)) {
             return jp[index];
         } else {