配合SD卡读写驱动实现对SD卡中的文本文件的读取，并将读到的数据通过串口输出到串口终端上，这里使用的是超级终端-SD card reader with SD card drive to achieve a text file to read, and read the data through the serial port output to the serial port terminal, where using HyperTerminal

读取文本文件并将其转换为一维数组，便于数据的分析。-Read a text file and convert it to a one-dimensional array, to facilitate analysis of the data.

单片机读取优盘与SD卡，并建立TXT文本文件与上位机进行数据交换-The MCU can read USB flash drives and SD cards, and TXT text files with the host computer for data exchange