diff --git a/.idea/workspace.xml b/.idea/workspace.xml
index b4a3804..43fb2ca 100644
--- a/.idea/workspace.xml
+++ b/.idea/workspace.xml
@@ -10,9 +10,9 @@
   </component>
   <component name="ChangeListManager">
     <list default="true" id="18463f0e-cf10-4ee2-975b-376476396e12" name="Default Changelist" comment="Default Changelist">
-      <change beforePath="$PROJECT_DIR$/example/pubspec.lock" beforeDir="false" afterPath="$PROJECT_DIR$/example/pubspec.lock" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/pubspec.lock" beforeDir="false" afterPath="$PROJECT_DIR$/pubspec.lock" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/pubspec.yaml" beforeDir="false" afterPath="$PROJECT_DIR$/pubspec.yaml" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/.idea/workspace.xml" beforeDir="false" afterPath="$PROJECT_DIR$/.idea/workspace.xml" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/lib/model/date_model.dart" beforeDir="false" afterPath="$PROJECT_DIR$/lib/model/date_model.dart" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/lib/utils/lunar_util.dart" beforeDir="false" afterPath="$PROJECT_DIR$/lib/utils/lunar_util.dart" afterDir="false" />
     </list>
     <option name="SHOW_DIALOG" value="false" />
     <option name="HIGHLIGHT_CONFLICTS" value="true" />
@@ -36,6 +36,7 @@
     <property name="SHARE_PROJECT_CONFIGURATION_FILES" value="true" />
     <property name="android.sdk.path" value="$PROJECT_DIR$/../Library/Android/sdk" />
     <property name="dart.analysis.tool.window.force.activate" value="false" />
+    <property name="dart.analysis.tool.window.visible" value="false" />
     <property name="io.flutter.reload.alreadyRun" value="true" />
     <property name="last_opened_file_path" value="$PROJECT_DIR$" />
     <property name="settings.editor.selected.configurable" value="flutter.settings" />
@@ -90,22 +91,4 @@
     </option>
     <option name="oldMeFiltersMigrated" value="true" />
   </component>
-  <component name="WindowStateProjectService">
-    <state width="1858" height="156" key="GridCell.Tab.0.bottom" timestamp="1595297133366">
-      <screen x="-310" y="-1417" width="2560" height="1417" />
-    </state>
-    <state width="1858" height="156" key="GridCell.Tab.0.bottom/47.23.1393.877/-310.-1417.2560.1417@-310.-1417.2560.1417" timestamp="1595297133366" />
-    <state width="1858" height="156" key="GridCell.Tab.0.center" timestamp="1595297133366">
-      <screen x="-310" y="-1417" width="2560" height="1417" />
-    </state>
-    <state width="1858" height="156" key="GridCell.Tab.0.center/47.23.1393.877/-310.-1417.2560.1417@-310.-1417.2560.1417" timestamp="1595297133366" />
-    <state width="1858" height="156" key="GridCell.Tab.0.left" timestamp="1595297133365">
-      <screen x="-310" y="-1417" width="2560" height="1417" />
-    </state>
-    <state width="1858" height="156" key="GridCell.Tab.0.left/47.23.1393.877/-310.-1417.2560.1417@-310.-1417.2560.1417" timestamp="1595297133365" />
-    <state width="1858" height="156" key="GridCell.Tab.0.right" timestamp="1595297133366">
-      <screen x="-310" y="-1417" width="2560" height="1417" />
-    </state>
-    <state width="1858" height="156" key="GridCell.Tab.0.right/47.23.1393.877/-310.-1417.2560.1417@-310.-1417.2560.1417" timestamp="1595297133366" />
-  </component>
 </project>
\ No newline at end of file
diff --git a/lib/model/date_model.dart b/lib/model/date_model.dart
index 326c60a..10665db 100644
--- a/lib/model/date_model.dart
+++ b/lib/model/date_model.dart
@@ -9,7 +9,7 @@ class DateModel {
   int? month;
   int day = 1;
 
-  List<int?> lunar = [];
+  List<int> lunar = [];
 
 //  List<int> get lunar {
 //    if (lunar?.isNotEmpty == false) {
@@ -86,7 +86,7 @@ class DateModel {
       ..year = dateTime.year
       ..month = dateTime.month
       ..day = dateTime.day;
-    List<int?> lunar =
+    List<int> lunar =
         LunarUtil.solarToLunar(dateModel.year!, dateModel.month!, dateModel.day);
     dateModel.lunar = lunar;
 
diff --git a/lib/utils/lunar_util.dart b/lib/utils/lunar_util.dart
index 59a3970..91fe09a 100644
--- a/lib/utils/lunar_util.dart
+++ b/lib/utils/lunar_util.dart
@@ -764,7 +764,7 @@ class LunarUtil {
 //    dateModel.isLeapYear = DateUtil.isLeapYear(year);
 //    dateModel.isCurrentDay = DateUtil.isCurrentDay(year, month, day);
 
-    List<int?> lunar = LunarUtil.solarToLunar(2020, 2, day);
+    List<int> lunar = LunarUtil.solarToLunar(2020, 2, day);
 
 //    dateModel.lunarYear = (lunar[0]);
 //    dateModel.lunarMonth = (lunar[1]);
@@ -808,8 +808,8 @@ class LunarUtil {
    * @param day   公历日
    * @return [0]农历年 [1]农历月 [2]农历日 [3]是否闰月 0 false : 1 true
    */
-  static List<int?> solarToLunar(int year, int month, int day) {
-    List<int?> lunarInt = [];
+  static List<int> solarToLunar(int year, int month, int day) {
+    List<int> lunarInt = [0,0,0,0];
     int index = year - SOLAR[0];
     int data = (year << 9) | (month << 5) | (day);
     int solar11;
@@ -861,12 +861,12 @@ class LunarUtil {
 
   static int solarToInt(int y, int m, int d) {
     m = (m + 9) % 12;
-    y = y - (m / 10).toInt();
+    y = y - m ~/ 10;
     return (365 * y +
-        (y / 4).toInt() -
-        (y / 100).toInt() +
-        (y / 400).toInt() +
-        ((m * 306 + 5) / 10).toInt() +
+        y ~/ 4 -
+        y ~/ 100 +
+        y ~/ 400 +
+        (m * 306 + 5) ~/ 10 +
         (d - 1));
   }