更新 '_posts/常用的代码块.md'

_posts/常用的代码块.md

@@ -75,4 +75,18 @@ private static Map<String, Object> sortByKey(Map<String, Object> map) {
 
 ```Java
     List<List<Long>> splitList = Lists.partition(list, 200);
-```
+```
+
+#### jodaTime 两个日期相差小时，天 ，分钟
+```Java
+        DateTime dt1 = new DateTime("2020-09-05");
+        dt1  = dt1.plusDays(1).plusMinutes(1).plusHours(1);
+        DateTime dt2 = new DateTime("2020-09-06");
+        System.out.println(dt1);
+        System.out.println(dt2);
+        //时间dt2-时间dt1 的差
+        int hours = Hours.hoursBetween(dt1, dt2).getHours();
+        int days = Days.daysBetween(dt1,dt2).getDays();
+        int minutes = Minutes.minutesBetween(dt1,dt2).getMinutes();
+        System.out.println(hours+" "+days+" "+minutes);
+```