2.1 Overview of data types What's data? ●What's data types? 。Date:1980-1-1 。Time:20:08:12 ·Age:65 years .Colors:Red,Black,Blue,Green,White,... ·Name:Xiaoyu Li.. 。Symbols:%,&,#,*,… 7 DATA Copyright 2019 by Xiaoyu Li.Copyright © 2019 by Xiaoyu Li. 7 2.1 Overview of data types What’s data? What’s data types?  Date：1980-1-1  Time：20:08:12  Age: 65 years  Colors: Red, Black, Blue, Green, White,…  Name: Xiaoyu Li….  Symbols: %, &, #, *, …