数据结构课程设计，在VC环境下完成，利用哈夫曼树原理，主要功能是实现字符的压缩和解压缩，设计脉络清晰，易懂-Data structure course design, completed in the VC environment, using Huffman tree principle, the main function is to achieve the character of the compression and decompression, design, clear struc