基于位表矩阵的Apriori算法，可以大幅缩小算法存储空间，减少读取文件次数。 测试文件格式为 “0 1 2 3 4 5 6 7 8 9 10 ”-Bitmap matrix of Apriori algorithm, the algorithm can significantly reduce storage space and reduce the number of times to read the file. Test file format " 012