改进ToDateTime在输入时间为0时的处理

src/Win/DateTime.cpp

@@ -118,9 +118,17 @@ namespace hgl
         FILETIME ft,local_ft;
         SYSTEMTIME st;
 
+        if(cur_time<=0)
+        {
+            GetLocalTime(&st);
+            SystemTimeToFileTime(&st,&ft);
+        }
+        else
+        {
             MicroTimeToFileTime(&ft, cur_time*HGL_MICRO_SEC_PER_SEC);
-
             FileTimeToSystemTime(&ft, &st);
+        }
+
         FileTimeToLocalFileTime(&ft, &local_ft);
 
         d.Set(st.wYear, st.wMonth, st.wDay, st.wDayOfWeek);