diff --git a/lib/tools/throttler.dart b/lib/tools/throttler.dart
index 8cdf1304..a5b6e96f 100644
--- a/lib/tools/throttler.dart
+++ b/lib/tools/throttler.dart
@@ -53,6 +53,7 @@ class FunctionBlocker {
   bool _blocked = false;
   Duration duration;
 
+  //阻止函数执行
   void block(Function function) {
     if (!_blocked) {
       _blocked = true;