MATLAB提供了多种方式从磁盘读入文件或将数据输入到工作空间，即读取数据，又叫导入数据；将工作空间的变量存储到磁盘文件中称为存写数据，又叫导出数据。-MATLAB provides a variety of ways from the disk is read into a document or data entered into the work space, that is, read data, also known as import data　will work variable storage space to keep the disk file is called to write data, also known as export data .