select * from cr01 into outfile 'C:/Users/del/Desktop/table1_data.csv' character set gb2312 fields terminated by ',' optionally enclosed by '"' escaped by '"' lines terminated by '\r\n'
select * from cr01; delete from cr01;
load data infile 'C:/Users/del/Desktop/table1_data.csv' into table cr01 character set gb2312 fields terminated by ',' optionally enclosed by '"' escaped by '"' lines terminated by '\r\n';