diff --git a/src/ZM/Event/EventMapIterator.php b/src/ZM/Event/EventMapIterator.php
index ea52243f..cebf3de9 100644
--- a/src/ZM/Event/EventMapIterator.php
+++ b/src/ZM/Event/EventMapIterator.php
@@ -5,7 +5,7 @@ declare(strict_types=1);
 namespace ZM\Event;
 
 use Iterator;
-use ReturnTypeWillChange;
+use ZM\Console\Console;
 
 class EventMapIterator implements Iterator
 {
@@ -22,40 +22,54 @@ class EventMapIterator implements Iterator
         $this->class = $class;
         $this->method = $method;
         $this->event_name = $event_name;
-        $this->nextToValid();
     }
 
     public function current()
     {
+        Console::debug('从 [' . $this->offset . '] 开始获取');
         return EventManager::$event_map[$this->class][$this->method][$this->offset];
     }
 
     public function next(): void
     {
-        ++$this->offset;
+        Console::debug('下一个offset为 [' . ++$this->offset . ']');
         $this->nextToValid();
     }
 
-    #[ReturnTypeWillChange]
     public function key()
     {
-        return $this->offset;
+        Console::debug('返回key：' . $this->offset);
+        return isset(EventManager::$event_map[$this->class][$this->method][$this->offset]) ? $this->offset : null;
     }
 
-    public function valid(): bool
+    public function valid($s = false): bool
     {
-        return isset(EventManager::$event_map[$this->class][$this->method][$this->offset]);
+        Console::debug(
+            "[{$this->offset}] " .
+            ($s ? 'valid' : '') . '存在：' .
+            (!isset(EventManager::$event_map[$this->class][$this->method][$this->offset]) ? Console::setColor('false', 'red') : ('true' .
+                (is_a(EventManager::$event_map[$this->class][$this->method][$this->offset], $this->event_name, true) ? '，是目标对象' : '，不是目标对象')))
+        );
+        return
+            isset(EventManager::$event_map[$this->class][$this->method][$this->offset])
+            && is_a(EventManager::$event_map[$this->class][$this->method][$this->offset], $this->event_name, true);
     }
 
     public function rewind(): void
     {
+        Console::debug('回到0');
         $this->offset = 0;
+        $this->nextToValid();
     }
 
     private function nextToValid()
     {
-        while ($this->valid() && !is_a($this->current(), $this->event_name, true)) {
+        while (
+            isset(EventManager::$event_map[$this->class][$this->method][$this->offset])
+            && !is_a(EventManager::$event_map[$this->class][$this->method][$this->offset], $this->event_name, true)
+        ) {
             ++$this->offset;
         }
+        Console::debug('内部偏移offset为 [' . $this->offset . ']');
     }
 }
diff --git a/src/ZM/global_functions.php b/src/ZM/global_functions.php
index 21f1dc28..6e5aa045 100644
--- a/src/ZM/global_functions.php
+++ b/src/ZM/global_functions.php
@@ -15,11 +15,11 @@ use ZM\ConnectionManager\ManagerGM;
 use ZM\Console\Console;
 use ZM\Container\Container;
 use ZM\Container\ContainerInterface;
+use ZM\Container\EntryResolutionException;
 use ZM\Context\Context;
 use ZM\Context\ContextInterface;
 use ZM\Event\EventManager;
 use ZM\Exception\RobotNotFoundException;
-use ZM\Exception\ZMKnownException;
 use ZM\Framework;
 use ZM\Store\LightCacheInside;
 use ZM\Store\ZMAtomic;
@@ -183,8 +183,7 @@ function match_args(string $pattern, string $subject)
 /**
  * 判断当前连接类型是否为传入的$type
  *
- * @param  string           $type 连接类型
- * @throws ZMKnownException
+ * @param string $type 连接类型
  */
 function current_connection_is(string $type): bool
 {
@@ -737,7 +736,8 @@ function container(): ContainerInterface
  * 解析类实例（使用容器）
  *
  * @template T
- * @param  class-string<T> $abstract
+ * @param  class-string<T>          $abstract
+ * @throws EntryResolutionException
  * @return Closure|mixed|T
  */
 function resolve(string $abstract, array $parameters = [])
@@ -750,6 +750,7 @@ function resolve(string $abstract, array $parameters = [])
  *
  * @template T
  * @param  null|class-string<T>               $abstract
+ * @throws EntryResolutionException
  * @return Closure|ContainerInterface|mixed|T
  */
 function app(string $abstract = null, array $parameters = [])
diff --git a/tests/ZM/Event/EventMapIteratorTest.php b/tests/ZM/Event/EventMapIteratorTest.php
new file mode 100644
index 00000000..f3039fc9
--- /dev/null
+++ b/tests/ZM/Event/EventMapIteratorTest.php
@@ -0,0 +1,33 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Tests\ZM\Event;
+
+use Module\Example\Hello;
+use PHPUnit\Framework\TestCase;
+use ZM\Annotation\CQ\CommandArgument;
+use ZM\Console\Console;
+use ZM\Event\EventMapIterator;
+
+/**
+ * @internal
+ */
+class EventMapIteratorTest extends TestCase
+{
+    public function testIterator(): void
+    {
+        Console::setLevel(4);
+        $iterator = new EventMapIterator(Hello::class, 'randNum', CommandArgument::class);
+        $arr = iterator_to_array($iterator);
+        $this->assertArrayNotHasKey(0, $arr);
+        $this->assertArrayNotHasKey(1, $arr);
+        $this->assertArrayHasKey(2, $arr);
+        $this->assertArrayHasKey(3, $arr);
+        $this->assertInstanceOf(CommandArgument::class, $arr[2]);
+        $this->assertInstanceOf(CommandArgument::class, $arr[3]);
+        $iterator = new EventMapIterator(Hello::class, 'closeUnknownConn', CommandArgument::class);
+        $ls = iterator_to_array($iterator);
+        $this->assertCount(0, $ls);
+    }
+}