diff --git a/.gitignore b/.gitignore
index 6419893ca962f3d35631e9d17a6b587415e47e62..cfc2af770b67891e598d2651a5c0393cff4248ff 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,3 +1,4 @@
 Keyboard/
 Keyboard.pro.user
 chineseBase/
+
diff --git a/chineseBase/chinese.db b/chineseBase/chinese.db
index 2094a3f1ca2eb8cc4c6abae9ae59c7ddb41ac092..e23aceac8f68aca006d77f2c15838e4acc5df3c0 100644
Binary files a/chineseBase/chinese.db and b/chineseBase/chinese.db differ
diff --git a/util.cpp b/util.cpp
index f1095864f633de6ab40fbde3b23e65441dbcd26c..7107c7f1d748c452cf7329ea5a4f6f97bdca2699 100644
--- a/util.cpp
+++ b/util.cpp
@@ -36,6 +36,10 @@ void Util::inputkey(Key key){
         XTestFakeKeyEvent(disp, XKeysymToKeycode(disp, key-Key_0+XK_0), true,0);
         XTestFakeKeyEvent(disp, XKeysymToKeycode(disp, key-Key_0+XK_0), false,0);
     }
+    if(key==Key_Backspace){
+        XTestFakeKeyEvent(disp, XKeysymToKeycode(disp, XK_BackSpace), true,0);
+        XTestFakeKeyEvent(disp, XKeysymToKeycode(disp, XK_BackSpace), false,0);
+    }
 
     XCloseDisplay(disp);