diff --git a/Gii/Command.php b/Gii/Command.php
index d06b5207..e4a960fa 100644
--- a/Gii/Command.php
+++ b/Gii/Command.php
@@ -1,5 +1,5 @@
 <?php
-
+declare(strict_types=1);
 
 namespace Gii;
 
@@ -16,10 +16,10 @@ use Snowflake\Snowflake;
 class Command extends \Console\Command
 {
 
-	public $command = 'sw:gii';
+	public string $command = 'sw:gii';
 
 
-	public $description = 'server start|stop|reload|restart';
+	public string $description = 'server start|stop|reload|restart';
 
 
 	/**
diff --git a/Gii/Gii.php b/Gii/Gii.php
index cb317555..0d02139a 100644
--- a/Gii/Gii.php
+++ b/Gii/Gii.php
@@ -5,6 +5,7 @@
  * Date: 2016/8/9 0009
  * Time: 17:43
  */
+declare(strict_types=1);
 
 namespace Gii;
 
@@ -23,22 +24,22 @@ use Snowflake\Snowflake;
  */
 class Gii
 {
-	private $tableName = NULL;
+	private ?string $tableName = NULL;
 
 	/** @var Connection */
-	private $db;
+	private Connection $db;
 
 	/** @var Input */
-	private $input;
+	private Input $input;
 
-	public $modelPath = APP_PATH . '/app/Models/';
-	public $modelNamespace = 'App\\Models\\';
+	public string $modelPath = APP_PATH . '/app/Models/';
+	public string $modelNamespace = 'App\\Models\\';
 
-	public $controllerPath = APP_PATH . '/app/Http/Controllers/';
-	public $controllerNamespace = 'App\\Http\\Controllers\\';
+	public string $controllerPath = APP_PATH . '/app/Http/Controllers/';
+	public string $controllerNamespace = 'App\\Http\\Controllers\\';
 
 
-	public $keyword = [
+	public array $keyword = [
 		'ADD', 'ALL', 'ALTER', 'AND', 'AS', 'ASC', 'ASENSITIVE', 'BEFORE', 'BETWEEN', 'BIGINT', 'BINARY', 'BLOB', 'BOTH', 'BY', 'CALL', 'CASCADE', 'CASE', 'CHANGE', 'CHAR', 'CHARACTER', 'CHECK', 'COLLATE', 'COLUMN', 'CONDITION', 'CONNECTION', 'CONSTRAINT', 'CONTINUE', 'CONVERT', 'CREATE', 'CROSS', 'CURRENT_DATE', 'CURRENT_TIME', 'CURRENT_TIMESTAMP', 'CURRENT_USER', 'CURSOR', 'DATABASE', 'DATABASES', 'DAY_HOUR', 'DAY_MICROSECOND', 'DAY_MINUTE', 'DAY_SECOND', 'DEC', 'DECIMAL', 'DECLARE', 'DEFAULT', 'DELAYED', 'DELETE', 'DESC', 'DESCRIBE', 'DETERMINISTIC', 'DISTINCT', 'DISTINCTROW', 'DIV', 'DOUBLE', 'DROP', 'DUAL', 'EACH', 'ELSE', 'ELSEIF', 'ENCLOSED', 'ESCAPED', 'EXISTS', 'EXIT', 'EXPLAIN', 'FALSE', 'FETCH', 'FLOAT', 'FLOAT4', 'FLOAT8', 'FOR', 'FORCE', 'FOREIGN', 'FROM', 'FULLTEXT', 'GOTO', 'GRANT', 'GROUP', 'HAVING', 'HIGH_PRIORITY', 'HOUR_MICROSECOND', 'HOUR_MINUTE', 'HOUR_SECOND', 'IF', 'IGNORE', 'IN', 'INDEX', 'INFILE', 'INNER', 'INOUT', 'INSENSITIVE', 'INSERT', 'INT', 'INT1', 'INT2', 'INT3', 'INT4', 'INT8', 'INTEGER', 'INTERVAL', 'INTO', 'IS', 'ITERATE', 'JOIN', 'KEY', 'KEYS', 'KILL', 'LABEL', 'LEADING', 'LEAVE', 'LEFT', 'LIKE', 'LIMIT', 'LINEAR', 'LINES', 'LOAD', 'LOCALTIME', 'LOCALTIMESTAMP', 'LOCK', 'LONG', 'LONGBLOB', 'LONGTEXT', 'LOOP', 'LOW_PRIORITY', 'MATCH', 'MEDIUMBLOB', 'MEDIUMINT', 'MEDIUMTEXT', 'MIDDLEINT', 'MINUTE_MICROSECOND', 'MINUTE_SECOND', 'MOD', 'MODIFIES', 'NATURAL', 'NOT', 'NO_WRITE_TO_BINLOG', 'NULL', 'NUMERIC', 'ON', 'OPTIMIZE', 'OPTION', 'OPTIONALLY', 'OR', 'ORDER', 'OUT', 'OUTER', 'OUTFILE', 'PRECISION', 'PRIMARY', 'PROCEDURE', 'PURGE', 'RAID0', 'RANGE', 'READ', 'READS', 'REAL', 'REFERENCES', 'REGEXP', 'RELEASE', 'RENAME', 'REPEAT', 'REPLACE', 'REQUIRE', 'RESTRICT', 'RETURN', 'REVOKE', 'RIGHT', 'RLIKE', 'SCHEMA', 'SCHEMAS', 'SECOND_MICROSECOND', 'SELECT', 'SENSITIVE', 'SEPARATOR', 'SET', 'SHOW', 'SMALLINT', 'SPATIAL', 'SPECIFIC', 'SQL', 'SQLEXCEPTION', 'SQLSTATE', 'SQLWARNING', 'SQL_BIG_RESULT', 'SQL_CALC_FOUND_ROWS', 'SQL_SMALL_RESULT', 'SSL', 'STARTING', 'STRAIGHT_JOIN', 'TABLE', 'TERMINATED', 'THEN', 'TINYBLOB', 'TINYINT', 'TINYTEXT', 'TO', 'TRAILING', 'TRIGGER', 'TRUE', 'UNDO', 'UNION', 'UNIQUE', 'UNLOCK', 'UNSIGNED', 'UPDATE', 'USAGE', 'USE', 'USING', 'UTC_DATE', 'UTC_TIME', 'UTC_TIMESTAMP', 'VALUES', 'VARBINARY', 'VARCHAR', 'VARCHARACTER', 'VARYING', 'WHEN', 'WHERE', 'WHILE', 'WITH', 'WRITE', 'X509', 'XOR', 'YEAR_MONTH', 'ZEROFILL'
 	];
 
diff --git a/Gii/GiiBase.php b/Gii/GiiBase.php
index 65d86201..3c83fb92 100644
--- a/Gii/GiiBase.php
+++ b/Gii/GiiBase.php
@@ -1,4 +1,5 @@
 <?php
+declare(strict_types=1);
 
 
 namespace Gii;
diff --git a/Gii/GiiController.php b/Gii/GiiController.php
index 1ce123dc..7754b907 100644
--- a/Gii/GiiController.php
+++ b/Gii/GiiController.php
@@ -1,4 +1,5 @@
 <?php
+declare(strict_types=1);
 
 
 namespace Gii;
diff --git a/Gii/GiiInterceptor.php b/Gii/GiiInterceptor.php
index 32645f9b..2d26f187 100644
--- a/Gii/GiiInterceptor.php
+++ b/Gii/GiiInterceptor.php
@@ -1,5 +1,6 @@
 <?php
 
+declare(strict_types=1);
 
 namespace Gii;
 
diff --git a/Gii/GiiLimits.php b/Gii/GiiLimits.php
index d6e8e169..74352a94 100644
--- a/Gii/GiiLimits.php
+++ b/Gii/GiiLimits.php
@@ -1,5 +1,6 @@
 <?php
 
+declare(strict_types=1);
 
 namespace Gii;
 
diff --git a/Gii/GiiMiddleware.php b/Gii/GiiMiddleware.php
index 0399dce1..c4070d5e 100644
--- a/Gii/GiiMiddleware.php
+++ b/Gii/GiiMiddleware.php
@@ -1,4 +1,5 @@
 <?php
+declare(strict_types=1);
 
 
 namespace Gii;
diff --git a/Gii/GiiModel.php b/Gii/GiiModel.php
index b6e12799..38fc88ea 100644
--- a/Gii/GiiModel.php
+++ b/Gii/GiiModel.php
@@ -1,4 +1,5 @@
 <?php
+declare(strict_types=1);
 
 
 namespace Gii;
diff --git a/Gii/GiiProviders.php b/Gii/GiiProviders.php
index 372fceaa..9343b59b 100644
--- a/Gii/GiiProviders.php
+++ b/Gii/GiiProviders.php
@@ -1,4 +1,5 @@
 <?php
+declare(strict_types=1);
 
 
 namespace Gii;
diff --git a/Gii/GiiTask.php b/Gii/GiiTask.php
index 66badf4e..0c3c4e6e 100644
--- a/Gii/GiiTask.php
+++ b/Gii/GiiTask.php
@@ -1,4 +1,5 @@
 <?php
+declare(strict_types=1);
 
 
 namespace Gii;