英文单词记忆与复习，可以自己添加复习任务以及单词的数量，自动记忆错误与正确单词,The English word memory refresher, you can add your own review tasks as well as the number of words the automatic memory error with the correct word! ! ! ! ! ! !

有关于huffman函数,打开一个文档并读取本件的英文单词来实现权值的编码.-There are about huffman function