把下面的文本复制到记事本中，修改名字为：my.cnf
[mysql]
# 默认字符集
default-character-set=utf8mb4
[client]
port = 3306
socket = /tmp/mysql.sock
[mysqld]
port = 3306
server-id = 3306
user = mysql
socket = /tmp/mysql.sock
# 安装目录（建议安装目录为：/usr/local/mysql）
basedir = /usr/local/mysql/data
# 数据存放目录（建议安装目录为：/usr/local/mysql）
datadir = /usr/local/mysql/mysql8_data
log-bin = /usr/local/mysql/mysql8_log-bin
innodb_data_home_dir =/usr/local/mysql/mysql8_data
innodb_log_group_home_dir =/usr/local/mysql/mysql8_data_log
# 日志及进程数据的存放目录
log-error =/usr/local/mysql/mysql8_log/mysql.log
pid-file =/usr/local/mysql/mysql8_log/mysql.pid
# 服务端字符集
character-set-server=utf8mb4
lower_case_table_names=1
autocommit =1
##### 以上涉及文件夹明，注意修改
skip-external-locking
key_buffer_size = 256M
max_allowed_packet = 1M
table_open_cache = 1024
sort_buffer_size = 4M
net_buffer_length = 8K
read_buffer_size = 4M
read_rnd_buffer_size = 512K
myisam_sort_buffer_size = 64M
thread_cache_size = 128
#query_cache_size = 128M
tmp_table_size = 128M
explicit_defaults_for_timestamp = true
max_connections = 500
max_connect_errors = 100
open_files_limit = 65535
binlog_format=mixed
binlog_expire_logs_seconds =864000
# 创建表时使用的默认存储引擎
default_storage_engine = InnoDB
innodb_data_file_path = ibdata1:10M:autoextend
innodb_buffer_pool_size = 1024M
innodb_log_file_size = 256M
innodb_log_buffer_size = 8M
innodb_flush_log_at_trx_commit = 1
innodb_lock_wait_timeout = 50
transaction-isolation=READ-COMMITTED
[mysqldump]
quick
max_allowed_packet = 16M
[myisamchk]