diff --git a/Matlab/lab1.m b/Matlab/lab1.m
new file mode 100644
index 0000000..9579464
--- /dev/null
+++ b/Matlab/lab1.m
@@ -0,0 +1,55 @@
+figure(1);
+syms x;
+t=-5:0.0001:5;
+fx=heaviside(x+2)-heaviside(x-2);
+ezplot(fx,[-5,5]);
+
+figure(2);
+fy=heaviside(x+0.2)-heaviside(x-0.2);
+ezplot(fy,[-5,5]);
+
+figure(3);
+fz=heaviside(x+0.1)-heaviside(x-0.1);
+ezplot(fz,[-5,5]);
+
+figure(4);
+subplot(2,1,1);
+fa=5*cos(12*pi*t)+6*cos(18*pi*t);
+plot(t,fa);
+
+subplot(2,1,2);
+xcorr1=autocorr(fa,t);
+plot(corr1);
+
+figure(5);
+fb=(cos(2*pi*t)).*(cos(2*pi*t));
+plot(t,fb);
+
+figure(6);
+t = 0:0.1:10;
+b1=[1,5,6];
+a1=[1,5];
+sys=tf(a1,b1);
+y1=step(sys,t);
+a2=[1,5];
+b2=[1,2,5];
+sys=tf(a2,b2);
+y2=step(sys,t);
+a3=[1.5];
+b3=[1,2,1];
+sys=tf(a3,b3);
+y3=step(sys,t);
+plot(t,y1,t,y2,'--',t,y3,'+');
+
+figure(7);
+sys=tf([1,2],[1,3,2]);
+y=impulse(sys,t);
+plot(t,y);
+
+f=cos(t);
+sys=tf([-1,2],[1,3,2]);
+y=lsim(sys,f,t);
+plot(t,f);
+
+
+
diff --git a/SoftwareDesign/Doc/软件设计综合实验_实验报告1.docx b/SoftwareDesign/Doc/软件设计综合实验_实验报告1.docx
deleted file mode 100644
index 5919ebc..0000000
Binary files a/SoftwareDesign/Doc/软件设计综合实验_实验报告1.docx and /dev/null differ
diff --git a/SoftwareDesign/Code/1-1a/main.cpp b/SoftwareDesign/Lab1/1-1a/main.cpp
similarity index 100%
rename from SoftwareDesign/Code/1-1a/main.cpp
rename to SoftwareDesign/Lab1/1-1a/main.cpp
diff --git a/SoftwareDesign/Code/1-1b/main.cpp b/SoftwareDesign/Lab1/1-1b/main.cpp
similarity index 100%
rename from SoftwareDesign/Code/1-1b/main.cpp
rename to SoftwareDesign/Lab1/1-1b/main.cpp
diff --git a/SoftwareDesign/Code/1-1c/main.cpp b/SoftwareDesign/Lab1/1-1c/main.cpp
similarity index 100%
rename from SoftwareDesign/Code/1-1c/main.cpp
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similarity index 100%
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diff --git a/SoftwareDesign/Code/1-2/main.cpp b/SoftwareDesign/Lab1/1-2/main.cpp
similarity index 100%
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rename to SoftwareDesign/Lab1/1-2/main.cpp
diff --git a/SoftwareDesign/Code/1-3a/main.cpp b/SoftwareDesign/Lab1/1-3a/main.cpp
similarity index 100%
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rename to SoftwareDesign/Lab1/1-3a/main.cpp
diff --git a/SoftwareDesign/Code/1-3b/main.cpp b/SoftwareDesign/Lab1/1-3b/main.cpp
similarity index 100%
rename from SoftwareDesign/Code/1-3b/main.cpp
rename to SoftwareDesign/Lab1/1-3b/main.cpp
diff --git a/SoftwareDesign/Code/inc/matrix.hpp b/SoftwareDesign/Lab1/inc/matrix.hpp
similarity index 100%
rename from SoftwareDesign/Code/inc/matrix.hpp
rename to SoftwareDesign/Lab1/inc/matrix.hpp
diff --git a/SoftwareDesign/Code/inc/vector.hpp b/SoftwareDesign/Lab1/inc/vector.hpp
similarity index 100%
rename from SoftwareDesign/Code/inc/vector.hpp
rename to SoftwareDesign/Lab1/inc/vector.hpp
diff --git a/SoftwareDesign/Code/2-1/2-1.pro b/SoftwareDesign/Lab2/2-1/2-1.pro
similarity index 100%
rename from SoftwareDesign/Code/2-1/2-1.pro
rename to SoftwareDesign/Lab2/2-1/2-1.pro
diff --git a/SoftwareDesign/Code/2-1/main.cpp b/SoftwareDesign/Lab2/2-1/main.cpp
similarity index 100%
rename from SoftwareDesign/Code/2-1/main.cpp
rename to SoftwareDesign/Lab2/2-1/main.cpp
diff --git a/SoftwareDesign/Code/2-1/mainwindow.cpp b/SoftwareDesign/Lab2/2-1/mainwindow.cpp
similarity index 100%
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diff --git a/SoftwareDesign/Code/2-1/mainwindow.h b/SoftwareDesign/Lab2/2-1/mainwindow.h
similarity index 100%
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rename to SoftwareDesign/Lab2/2-1/mainwindow.h
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similarity index 100%
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rename to SoftwareDesign/Lab2/2-1/mainwindow.ui
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similarity index 100%
rename from SoftwareDesign/Code/2-2-1/main.cpp
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diff --git a/SoftwareDesign/Code/2-2-1/mainwindow.cpp b/SoftwareDesign/Lab2/2-2-1/mainwindow.cpp
similarity index 100%
rename from SoftwareDesign/Code/2-2-1/mainwindow.cpp
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similarity index 100%
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diff --git a/SoftwareDesign/Code/2-2-4/widget.cpp b/SoftwareDesign/Lab2/2-2-4/widget.cpp
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similarity index 100%
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similarity index 100%
rename from SoftwareDesign/Code/2-2-5_enhanced/2-2-5_enhanced.pro
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diff --git a/SoftwareDesign/Code/2-2-5_enhanced/cal.cpp b/SoftwareDesign/Lab2/2-2-5_enhanced/cal.cpp
similarity index 100%
rename from SoftwareDesign/Code/2-2-5_enhanced/cal.cpp
rename to SoftwareDesign/Lab2/2-2-5_enhanced/cal.cpp
diff --git a/SoftwareDesign/Code/2-2-5_enhanced/cal.h b/SoftwareDesign/Lab2/2-2-5_enhanced/cal.h
similarity index 100%
rename from SoftwareDesign/Code/2-2-5_enhanced/cal.h
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diff --git a/SoftwareDesign/Code/2-2-5_enhanced/main.cpp b/SoftwareDesign/Lab2/2-2-5_enhanced/main.cpp
similarity index 100%
rename from SoftwareDesign/Code/2-2-5_enhanced/main.cpp
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diff --git a/SoftwareDesign/Code/2-2-5_enhanced/mainwindow.cpp b/SoftwareDesign/Lab2/2-2-5_enhanced/mainwindow.cpp
similarity index 100%
rename from SoftwareDesign/Code/2-2-5_enhanced/mainwindow.cpp
rename to SoftwareDesign/Lab2/2-2-5_enhanced/mainwindow.cpp
diff --git a/SoftwareDesign/Code/2-2-5_enhanced/mainwindow.h b/SoftwareDesign/Lab2/2-2-5_enhanced/mainwindow.h
similarity index 100%
rename from SoftwareDesign/Code/2-2-5_enhanced/mainwindow.h
rename to SoftwareDesign/Lab2/2-2-5_enhanced/mainwindow.h
diff --git a/SoftwareDesign/Code/2-2-5_enhanced/mainwindow.ui b/SoftwareDesign/Lab2/2-2-5_enhanced/mainwindow.ui
similarity index 100%
rename from SoftwareDesign/Code/2-2-5_enhanced/mainwindow.ui
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diff --git a/SoftwareDesign/Code/2-3-1/2-3-1.pro b/SoftwareDesign/Lab2/2-3-1/2-3-1.pro
similarity index 100%
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diff --git a/SoftwareDesign/Code/2-3-1/main.cpp b/SoftwareDesign/Lab2/2-3-1/main.cpp
similarity index 100%
rename from SoftwareDesign/Code/2-3-1/main.cpp
rename to SoftwareDesign/Lab2/2-3-1/main.cpp
diff --git a/SoftwareDesign/Code/2-3-1/mainwindow.cpp b/SoftwareDesign/Lab2/2-3-1/mainwindow.cpp
similarity index 100%
rename from SoftwareDesign/Code/2-3-1/mainwindow.cpp
rename to SoftwareDesign/Lab2/2-3-1/mainwindow.cpp
diff --git a/SoftwareDesign/Code/2-3-1/mainwindow.h b/SoftwareDesign/Lab2/2-3-1/mainwindow.h
similarity index 100%
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similarity index 100%
rename from SoftwareDesign/Code/2-3-1/mainwindow.ui
rename to SoftwareDesign/Lab2/2-3-1/mainwindow.ui
diff --git a/SoftwareDesign/Code/2-3-2/2-3-2.pro b/SoftwareDesign/Lab2/2-3-2/2-3-2.pro
similarity index 100%
rename from SoftwareDesign/Code/2-3-2/2-3-2.pro
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diff --git a/SoftwareDesign/Code/2-3-2/main.cpp b/SoftwareDesign/Lab2/2-3-2/main.cpp
similarity index 100%
rename from SoftwareDesign/Code/2-3-2/main.cpp
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diff --git a/SoftwareDesign/Code/2-3-2/mainwindow.cpp b/SoftwareDesign/Lab2/2-3-2/mainwindow.cpp
similarity index 100%
rename from SoftwareDesign/Code/2-3-2/mainwindow.cpp
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diff --git a/SoftwareDesign/Code/2-3-2/mainwindow.h b/SoftwareDesign/Lab2/2-3-2/mainwindow.h
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diff --git a/SoftwareDesign/Code/2-3-3/main.cpp b/SoftwareDesign/Lab2/2-3-3/main.cpp
similarity index 100%
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diff --git a/SoftwareDesign/Code/2-3-3/mainwindow.cpp b/SoftwareDesign/Lab2/2-3-3/mainwindow.cpp
similarity index 100%
rename from SoftwareDesign/Code/2-3-3/mainwindow.cpp
rename to SoftwareDesign/Lab2/2-3-3/mainwindow.cpp
diff --git a/SoftwareDesign/Code/2-3-3/mainwindow.h b/SoftwareDesign/Lab2/2-3-3/mainwindow.h
similarity index 100%
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similarity index 100%
rename from SoftwareDesign/Code/2-3-4/main.cpp
rename to SoftwareDesign/Lab2/2-3-4/main.cpp
diff --git a/SoftwareDesign/Code/2-3-4/mainwindow.cpp b/SoftwareDesign/Lab2/2-3-4/mainwindow.cpp
similarity index 100%
rename from SoftwareDesign/Code/2-3-4/mainwindow.cpp
rename to SoftwareDesign/Lab2/2-3-4/mainwindow.cpp
diff --git a/SoftwareDesign/Code/2-3-4/mainwindow.h b/SoftwareDesign/Lab2/2-3-4/mainwindow.h
similarity index 100%
rename from SoftwareDesign/Code/2-3-4/mainwindow.h
rename to SoftwareDesign/Lab2/2-3-4/mainwindow.h
diff --git a/SoftwareDesign/Code/2-3-4/mainwindow.ui b/SoftwareDesign/Lab2/2-3-4/mainwindow.ui
similarity index 100%
rename from SoftwareDesign/Code/2-3-4/mainwindow.ui
rename to SoftwareDesign/Lab2/2-3-4/mainwindow.ui
diff --git a/SoftwareDesign/Code/Lab2-3_Calculator4490_v3/Lab2-3_Calculator4490_v3.pro b/SoftwareDesign/Lab2/Lab2-3_Calculator4490_v3/Lab2-3_Calculator4490_v3.pro
similarity index 100%
rename from SoftwareDesign/Code/Lab2-3_Calculator4490_v3/Lab2-3_Calculator4490_v3.pro
rename to SoftwareDesign/Lab2/Lab2-3_Calculator4490_v3/Lab2-3_Calculator4490_v3.pro
diff --git a/SoftwareDesign/Code/Lab2-3_Calculator4490_v3/cal.cpp b/SoftwareDesign/Lab2/Lab2-3_Calculator4490_v3/cal.cpp
similarity index 100%
rename from SoftwareDesign/Code/Lab2-3_Calculator4490_v3/cal.cpp
rename to SoftwareDesign/Lab2/Lab2-3_Calculator4490_v3/cal.cpp
diff --git a/SoftwareDesign/Code/Lab2-3_Calculator4490_v3/cal.h b/SoftwareDesign/Lab2/Lab2-3_Calculator4490_v3/cal.h
similarity index 100%
rename from SoftwareDesign/Code/Lab2-3_Calculator4490_v3/cal.h
rename to SoftwareDesign/Lab2/Lab2-3_Calculator4490_v3/cal.h
diff --git a/SoftwareDesign/Code/Lab2-3_Calculator4490_v3/main.cpp b/SoftwareDesign/Lab2/Lab2-3_Calculator4490_v3/main.cpp
similarity index 100%
rename from SoftwareDesign/Code/Lab2-3_Calculator4490_v3/main.cpp
rename to SoftwareDesign/Lab2/Lab2-3_Calculator4490_v3/main.cpp
diff --git a/SoftwareDesign/Code/Lab2-3_Calculator4490_v3/mainwindow.cpp b/SoftwareDesign/Lab2/Lab2-3_Calculator4490_v3/mainwindow.cpp
similarity index 79%
rename from SoftwareDesign/Code/Lab2-3_Calculator4490_v3/mainwindow.cpp
rename to SoftwareDesign/Lab2/Lab2-3_Calculator4490_v3/mainwindow.cpp
index f3fca90..92b397f 100644
--- a/SoftwareDesign/Code/Lab2-3_Calculator4490_v3/mainwindow.cpp
+++ b/SoftwareDesign/Lab2/Lab2-3_Calculator4490_v3/mainwindow.cpp
@@ -119,41 +119,8 @@ void MainWindow::keyPressEvent(QKeyEvent *event) {
   case Qt::Key_7:
     emit ui->digitBtn7->clicked();
     break;
-  case Qt::Key_8:
-    emit ui->digitBtn8->clicked();
-    break;
-  case Qt::Key_9:
-    emit ui->digitBtn9->clicked();
-    break;
-  case Qt::Key_Plus:
-    emit ui->addBtn->clicked();
-    break;
-  case Qt::Key_Minus:
-    emit ui->subtractionBtn->clicked();
-    break;
-  case Qt::Key_Asterisk:
-    emit ui->mulBtn->clicked();
-    break;
-  case Qt::Key_Slash:
-    emit ui->divisionBtn->clicked();
-    break;
-  case Qt::Key_Period:
-    emit ui->pointBtn->clicked();
-    break;
-  case Qt::Key_Equal:
-    emit ui->equalBtn->clicked();
-  case Qt::Key_Backspace:
-    emit ui->clearBtn->clicked();
-    break;
-  case Qt::Key_Delete:
-    emit ui->clearAllBtn->clicked();
-    break;
-  case Qt::Key_Enter:
-    emit ui->equalBtn->clicked();
-    break;
-  case Qt::Key_Escape:
-    emit ui->clearAllBtn->clicked();
-    break;
+  case Qt::Key_8: 
+  
   default:
     break;
   }
diff --git a/SoftwareDesign/Code/Lab2-3_Calculator4490_v3/mainwindow.h b/SoftwareDesign/Lab2/Lab2-3_Calculator4490_v3/mainwindow.h
similarity index 100%
rename from SoftwareDesign/Code/Lab2-3_Calculator4490_v3/mainwindow.h
rename to SoftwareDesign/Lab2/Lab2-3_Calculator4490_v3/mainwindow.h
diff --git a/SoftwareDesign/Code/Lab2-3_Calculator4490_v3/mainwindow.ui b/SoftwareDesign/Lab2/Lab2-3_Calculator4490_v3/mainwindow.ui
similarity index 100%
rename from SoftwareDesign/Code/Lab2-3_Calculator4490_v3/mainwindow.ui
rename to SoftwareDesign/Lab2/Lab2-3_Calculator4490_v3/mainwindow.ui
diff --git a/SoftwareDesign/Code/lab2-3-5_KeyEvent/lab2-3-5_KeyEvent.pro b/SoftwareDesign/Lab2/lab2-3-5_KeyEvent/lab2-3-5_KeyEvent.pro
similarity index 100%
rename from SoftwareDesign/Code/lab2-3-5_KeyEvent/lab2-3-5_KeyEvent.pro
rename to SoftwareDesign/Lab2/lab2-3-5_KeyEvent/lab2-3-5_KeyEvent.pro
diff --git a/SoftwareDesign/Code/lab2-3-5_KeyEvent/main.cpp b/SoftwareDesign/Lab2/lab2-3-5_KeyEvent/main.cpp
similarity index 100%
rename from SoftwareDesign/Code/lab2-3-5_KeyEvent/main.cpp
rename to SoftwareDesign/Lab2/lab2-3-5_KeyEvent/main.cpp
diff --git a/SoftwareDesign/Code/lab2-3-5_KeyEvent/mainwindow.cpp b/SoftwareDesign/Lab2/lab2-3-5_KeyEvent/mainwindow.cpp
similarity index 100%
rename from SoftwareDesign/Code/lab2-3-5_KeyEvent/mainwindow.cpp
rename to SoftwareDesign/Lab2/lab2-3-5_KeyEvent/mainwindow.cpp
diff --git a/SoftwareDesign/Code/lab2-3-5_KeyEvent/mainwindow.h b/SoftwareDesign/Lab2/lab2-3-5_KeyEvent/mainwindow.h
similarity index 100%
rename from SoftwareDesign/Code/lab2-3-5_KeyEvent/mainwindow.h
rename to SoftwareDesign/Lab2/lab2-3-5_KeyEvent/mainwindow.h
diff --git a/SoftwareDesign/Code/lab2-3-5_KeyEvent/mainwindow.ui b/SoftwareDesign/Lab2/lab2-3-5_KeyEvent/mainwindow.ui
similarity index 100%
rename from SoftwareDesign/Code/lab2-3-5_KeyEvent/mainwindow.ui
rename to SoftwareDesign/Lab2/lab2-3-5_KeyEvent/mainwindow.ui
diff --git a/SoftwareDesign/Code/workspace.code-workspace b/SoftwareDesign/workspace.code-workspace
similarity index 100%
rename from SoftwareDesign/Code/workspace.code-workspace
rename to SoftwareDesign/workspace.code-workspace