本文档实现了字符集合的并交差等逻辑运算，采用多种语言（包括c和c++），采用多种数据结构（链表、数组等）实现集合的并交差等运算。分别用结构体和类实现。很适合初学者熟练掌握基本的数据结构知识以及集合的运算过程。-This document character set and achieve cross other logic operations, multiple languages ​ ​ (including c and c++), using a variety of data structures (lists, arrays, etc.) to achieve the collection and call it a day and other operations. Respectively structures and classes. Very suitable for beginners to master the basic knowledge of data structures and collection operation process.