diff --git a/README.md b/README.md
index 840bac63206dabea3887290675204840f6b499ff..0b30a08ff7eb91cdd4b8b41a63bb76d0fa4475b4 100644
--- a/README.md
+++ b/README.md
@@ -106,13 +106,13 @@ BleManager.getInstance().read(
             setTimeout(()=> {
                 _this.appendDataText(HexUtil.formatHexString(data, true));
             });
-        }
+        };
     
         public onReadFailure(exception: BleException): void {
             setTimeout(()=> {
                 _this.appendDataText(exception.toString());
             });
-        }
+        };
     });
 ```
 8. 写数据