feat[construct]default value

scidatetime/__init__.py

@@ -84,6 +84,23 @@ def __new__(
             d = datetime.timedelta(seconds=-time_timezone)
             tzinfo = datetime.timezone(d)
 
+        if year is Ellipsis:
+            year = 2000
+        if month is Ellipsis:
+            month = 1
+        if day is Ellipsis:
+            day = 1
+        if hour is Ellipsis:
+            hour = 0
+        if minute is Ellipsis:
+            minute = 0
+        if second is Ellipsis:
+            second = 0
+        if microsecond is Ellipsis:
+            microsecond = 0
+        if tzinfo is Ellipsis:
+            tzinfo = None
+
         t = super().__new__(cls, year, month, day, hour, minute,
                             second, microsecond, tzinfo, fold=fold)
         return t

scidatetime/__version__.py

@@ -2,7 +2,7 @@
 __description__ = "scidatetime is python module for DateTime handle."
 __keywords__ = ['lib', 'utils']
 __url__ = "https://github.com/serfend/scidatetime"
-__version__ = "1.19.15"
+__version__ = "1.19.16"
 __author__ = "serfend"
 __author_email__ = "serfend@foxmail.com"
 __license__ = "MIT Licence"