从.txt文件中读取数据，并对数据进行哈尔小波变换和压缩操作。-From. Txt file to read data, and data Haar wavelet transform and compression operations.

本例通过VC实现二维快速傅里叶变换，涉及到进行矩阵、复数等数学运算，运用了C语言动态内存分配、文件操作、结构指针的函数调用等内容。-In this case through the VC to achieve two-dimensional fast Fourier transform, related to the matrix, such as complex mathematics, use the C language, dynamic memory allocation, file o