用verilog实现的SPI程序，还在modelsim中编写了testbetch文件，非常适合初学者做SPI实验，做一遍包括quartus应用及modelsim仿真都会了-Implementation of SPI with verilog program, also write the testbetch modelsim file, ideal for beginners to do SPI experiment, do it again, including quartus and mod