Hello Daihua Ye,
1) You can change the position of the labels with position property. For example:
2) Currently total label for the bar chart is no supported. I would suggest to submit your request in Kendo's UserVoice
so other members of the community can evaluate, comment on and vote for it.
the Telerik team
Join us on our journey to create the world's most complete HTML 5 UI Framework - download Kendo UI