diff --git a/0n1n.json b/grammar/0n1n.json
similarity index 100%
rename from 0n1n.json
rename to grammar/0n1n.json
diff --git a/m-n.json b/grammar/m-n.json
similarity index 100%
rename from m-n.json
rename to grammar/m-n.json
diff --git a/grammar/wcw.json b/grammar/wcw.json
new file mode 100644
index 0000000..249639d
--- /dev/null
+++ b/grammar/wcw.json
@@ -0,0 +1,227 @@
+{
+    "name": "wcw",
+    "description": "{ wcw | w ∈ {a,b}+ }",
+    "grammar": {
+        "states": {
+            "states": [
+                "q0",
+                "[q1,a]",
+                "[q1,b]",
+                "[q2,a]",
+                "[q2,b]",
+                "q3",
+                "q4",
+                "q5",
+                "q6",
+                "q7",
+                "q8"
+            ],
+            "initial": "q0",
+            "finial": [
+                "q8"
+            ]
+        },
+        "input": [
+            "a",
+            "b",
+            "c"
+        ],
+        "alphabet": [
+            "a",
+            "b",
+            "c",
+            "X",
+            "Y",
+            "B"
+        ],
+        "blank": "B",
+        "transition": {
+            "q0": {
+                "a": [
+                    "[q1,a]",
+                    "X",
+                    "R"
+                ],
+                "b": [
+                    "[q1,b]",
+                    "Y",
+                    "R"
+                ]
+            },
+            "[q1,a]": {
+                "a": [
+                    "[q1,a]",
+                    "a",
+                    "R"
+                ],
+                "b": [
+                    "[q1,a]",
+                    "b",
+                    "R"
+                ],
+                "c":[
+                    "[q2,a]",
+                    "c",
+                    "R"
+                ]
+            },
+            "[q1,b]": {
+                "a": [
+                    "[q1,b]",
+                    "a",
+                    "R"
+                ],
+                "b": [
+                    "[q1,b]",
+                    "b",
+                    "R"
+                ],
+                "c":[
+                    "[q2,b]",
+                    "c",
+                    "R"
+                ]
+            },
+            "[q2,a]": {
+                "X": [
+                    "[q2,a]",
+                    "X",
+                    "R"
+                ],
+                "Y": [
+                    "[q2,a]",
+                    "Y",
+                    "R"
+                ],
+                "a":[
+                    "q3",
+                    "X",
+                    "L"
+                ]
+            },
+            "[q2,b]": {
+                "X": [
+                    "[q2,b]",
+                    "X",
+                    "R"
+                ],
+                "Y": [
+                    "[q2,b]",
+                    "Y",
+                    "R"
+                ],
+                "b":[
+                    "q3",
+                    "Y",
+                    "L"
+                ]
+            },
+            "q3": {
+                "X": [
+                    "q3",
+                    "X",
+                    "L"
+                ],
+                "Y": [
+                    "q3",
+                    "Y",
+                    "L"
+                ],
+                "c": [
+                    "q4",
+                    "c",
+                    "L"
+                ]
+            },
+            "q4": {
+                "a": [
+                    "q5",
+                    "a",
+                    "L"
+                ],
+                "b": [
+                    "q5",
+                    "b",
+                    "L"
+                ],
+                "X": [
+                    "q6",
+                    "X",
+                    "R"
+                ],
+                "Y":[
+                    "q6",
+                    "Y",
+                    "R"   
+                ]
+            },
+            "q5": {
+                "a": [
+                    "q5",
+                    "a",
+                    "L"
+                ],
+                "b": [
+                    "q5",
+                    "b",
+                    "L"
+                ],
+                "X": [
+                    "q0",
+                    "X",
+                    "R"
+                ],
+                "Y": [
+                    "q0",
+                    "Y",
+                    "R"
+                ]
+            },
+            "q6":{
+                "X":[
+                    "q6",
+                    "X",
+                    "R"
+                ],
+                "Y":[
+                    "q6",
+                    "Y",
+                    "R"
+                ],
+                "c":[
+                    "q6",
+                    "c",
+                    "R"   
+                ],
+                "B":[
+                    "q7",
+                    "B",
+                    "L"
+                ]
+            },
+            "q7":{
+                "c":[
+                    "q7",
+                    "c",
+                    "L"
+                ],
+                "X":[
+                    "q7",
+                    "a",
+                    "L"
+                ],
+                "Y":[
+                    "q7",
+                    "b",
+                    "L"
+                ],
+                "B":[
+                    "q8",
+                    "B",
+                    "R"
+                ]
+            }
+        }
+    },
+    "demo":"aabbbcaabbb"
+}
\ No newline at end of file
diff --git a/main.cpp b/main.cpp
index 260020e..540c6f0 100644
--- a/main.cpp
+++ b/main.cpp
@@ -10,12 +10,5 @@ int main(int argc, char *argv[])
     MainWindow w;
     w.show();
 
-//    TuringMachine tm;
-//    tm.setGrammar("0n1n.json");
-//    tm.setTestStr("");
-//    if(tm.run())
-//        qDebug()<<"OK";
-//    else
-//        qDebug()<<"not ok";
     return a.exec();
 }
diff --git a/mainwindow.cpp b/mainwindow.cpp
index ba7de5b..6af379c 100644
--- a/mainwindow.cpp
+++ b/mainwindow.cpp
@@ -14,7 +14,7 @@ MainWindow::MainWindow(QWidget *parent) :
     helpMenu->addAction(aboutAction);
     setCentralWidget(cw);
     menuBar()->addMenu(helpMenu);
-    statusBar()->showMessage("欢迎使用环保图灵机！");
+    statusBar()->showMessage(tr("欢迎使用图灵机!"));
     connect(cw, CentralWidget::setStatus, this,[this](QString message)
     {
         statusBar()->showMessage(message, 0);
@@ -31,7 +31,7 @@ void MainWindow::showAbout()
 {
     QMessageBox *aboutWindow = new QMessageBox(this);
    aboutWindow->setStandardButtons(QMessageBox::Ok);
-   aboutWindow->setText(tr("<h1>TuringMachine</h1>"
+   aboutWindow->setText(tr("<h2>TuringMachine</h2>"
                             "<p>Based on Qt 5.10.1 (MinGW 5.3.0, 32bit)</p>"
                             "Source Code: <a href=\"https://github.com/c-my/TuringMachine\">https://github.com/c-my/TuringMachine</a><br/>"
                            "Email: "