MySQL中secure-file-priv 配置项对数据导入导出的影响

在通过“select * into outfile 'C:/ProgramData/MySQL/MySQL Server 5.7/Data/temp/student.txt' from my_student;”把数据表my_student导出。但是操作时，遇到1290错误。在通过“select * into outfile 'C:/ProgramData/MySQL