配置ini,删除表重新导入，因为汉字占3字节，表情占4字节，所有出错，utf8改utf8mb4
[mysql]
default-character-set=utf8mb4
[mysqld]
port=3306
basedir=D:/phpstudy_pro/Extensions/MySQL5.7.26/
datadir=D:/phpstudy_pro/Extensions/MySQL5.7.26/data/
character-set-server = utf8mb4
default-storage-engine=MyIsam
max_connections=100
collation-server=utf8mb4_unicode_ci
init_connect='SET NAMES utf8mb4'
innodb_buffer_pool_size=64M
innodb_flush_log_at_trx_commit=1
innodb_lock_wait_timeout=120
innodb_log_buffer_size=4M
innodb_log_file_size=256M
interactive_timeout=120
join_buffer_size=2M
key_buffer_size=32M
log_error_verbosity=1
max_allowed_packet=16M
max_heap_table_size=64M
myisam_max_sort_file_size=64G
myisam_sort_buffer_size=32M
read_buffer_size=512kb
read_rnd_buffer_size=4M
server_id=1
skip-external-locking=on
sort_buffer_size=256kb
table_open_cache=256
thread_cache_size=16
tmp_table_size=64M
wait_timeout=120
sql_mode=STRICT_TRANS_TABLES,NO_ZERO_IN_DATE,NO_ZERO_DATE,ERROR_FOR_DIVISION_BY_ZERO,NO_ENGINE_SUBSTITUTION
group_concat_max_len=4294967295
character-set-client-handshake=FALSE
[client]
port=3306
default-character-set=utf8mb4