MySQL报错 : Your password does not satisfy the current policy requirements

mysql> use mysql;
Reading table information for completion of table and column names
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Database changed
mysql> create  user  'yaoyongfeng'@'%'  identified by  'jingan123456' ;

mysql> set global validate_password_policy=0;
Query OK, 0 rows affected (0.00 sec)

mysql> set global validate_password_mixed_case_count=0;
Query OK, 0 rows affected (0.00 sec)

mysql> set global validate_password_number_count=3;
Query OK, 0 rows affected (0.00 sec)

mysql> set global validate_password_special_char_count=0;
Query OK, 0 rows affected (0.00 sec)

mysql> set global validate_password_length=3;
Query OK, 0 rows affected (0.00 sec)

mysql> SHOW VARIABLES LIKE 'validate_password%';
+--------------------------------------------------------+--------+
| Variable_name                                            | Value |
+--------------------------------------------------------+--------+
| validate_password_check_user_name      | OFF   |
| validate_password_dictionary_file             |           |
| validate_password_length                         |     3    |
| validate_password_mixed_case_count     |     0    |
| validate_password_number_count            |     3    |
| validate_password_policy                          | LOW  |
| validate_password_special_char_count    |     0    |
+-------------------------------------------------------+---------+
7 rows in set (0.01 sec)

mysql> create  user  'yaoyongfeng'@'%'  identified by  'jingan123456' ;
Query OK, 0 rows affected (0.01 sec)

mysql> grant all privileges on secoard.* to 'yaoyongfeng'@'% 'identified by 'jingan123456' with grant option;
Query OK, 0 rows affected, 1 warning (0.01 sec)