diff --git a/homework-day1/homework-day1.pro b/homework-day1/homework-day1.pro
new file mode 100644
index 0000000..4f144b7
--- /dev/null
+++ b/homework-day1/homework-day1.pro
@@ -0,0 +1,44 @@
+QT       += core gui
+
+greaterThan(QT_MAJOR_VERSION, 4): QT += widgets
+
+CONFIG += c++11
+
+# The following define makes your compiler emit warnings if you use
+# any Qt feature that has been marked deprecated (the exact warnings
+# depend on your compiler). Please consult the documentation of the
+# deprecated API in order to know how to port your code away from it.
+DEFINES += QT_DEPRECATED_WARNINGS
+
+# You can also make your code fail to compile if it uses deprecated APIs.
+# In order to do so, uncomment the following line.
+# You can also select to disable deprecated APIs only up to a certain version of Qt.
+#DEFINES += QT_DISABLE_DEPRECATED_BEFORE=0x060000    # disables all the APIs deprecated before Qt 6.0.0
+
+SOURCES += \
+    main.cpp \
+    widget.cpp \
+    widget1.cpp \
+    widget2.cpp \
+    widget3.cpp \
+    widget4.cpp \
+    widget5.cpp \
+    widget6.cpp \
+    widget7.cpp \
+    widget8.cpp
+
+HEADERS += \
+    widget.h \
+    widget1.h \
+    widget2.h \
+    widget3.h \
+    widget4.h \
+    widget5.h \
+    widget6.h \
+    widget7.h \
+    widget8.h
+
+# Default rules for deployment.
+qnx: target.path = /tmp/$${TARGET}/bin
+else: unix:!android: target.path = /opt/$${TARGET}/bin
+!isEmpty(target.path): INSTALLS += target
diff --git a/homework-day1/main.cpp b/homework-day1/main.cpp
new file mode 100644
index 0000000..78725e7
--- /dev/null
+++ b/homework-day1/main.cpp
@@ -0,0 +1,36 @@
+#include "widget.h"
+#include "widget1.h" // 题目1
+#include "widget2.h" // 题目2
+#include "widget3.h" // 题目3
+#include "widget4.h" // 题目4
+#include "widget5.h" // 题目5
+#include "widget7.h" // 题目6，题目7
+#include "widget8.h" // 题目7
+
+#include <QApplication>
+
+int main(int argc, char *argv[])
+{
+    QApplication a(argc, argv);
+    //    Widget7 w;
+    //    w.show();
+    Widget7 judge1;
+    Widget7 judge2;
+    Widget7 judge3;
+
+    Widget8 w8;
+
+    judge1.show();
+    judge2.show();
+    judge3.show();
+
+    // 建立信号槽连接
+    w8.connect(&judge1,&Widget7::studentSelected,&w8,&Widget8::receviceStudentSelection);
+    w8.connect(&judge2,&Widget7::studentSelected,&w8,&Widget8::receviceStudentSelection);
+    w8.connect(&judge2,&Widget7::studentSelected,&w8,&Widget8::receviceStudentSelection);
+
+
+//    w8.show();
+
+    return a.exec();
+}
diff --git a/homework-day1/widget.cpp b/homework-day1/widget.cpp
new file mode 100644
index 0000000..7350ff4
--- /dev/null
+++ b/homework-day1/widget.cpp
@@ -0,0 +1,11 @@
+#include "widget.h"
+
+Widget::Widget(QWidget *parent)
+    : QWidget(parent)
+{
+}
+
+Widget::~Widget()
+{
+}
+
diff --git a/homework-day1/widget.h b/homework-day1/widget.h
new file mode 100644
index 0000000..47b6270
--- /dev/null
+++ b/homework-day1/widget.h
@@ -0,0 +1,14 @@
+#ifndef WIDGET_H
+#define WIDGET_H
+
+#include <QWidget>
+
+class Widget : public QWidget
+{
+    Q_OBJECT
+
+public:
+    Widget(QWidget *parent = nullptr);
+    ~Widget();
+};
+#endif // WIDGET_H
diff --git a/homework-day1/widget1.cpp b/homework-day1/widget1.cpp
new file mode 100644
index 0000000..c0634f9
--- /dev/null
+++ b/homework-day1/widget1.cpp
@@ -0,0 +1,15 @@
+#include "widget1.h"
+
+Widget1::Widget1(QWidget *parent) : QWidget(parent)
+{
+    setWindowTitle("题目1");
+    setFixedSize(800,600);
+
+    btn = new QPushButton("按钮",this);
+    btn->setFixedSize(200,100);
+    btn->move(10,10);
+
+    connect(btn,&QPushButton::clicked,[&]()->void{
+                qDebug()<<"I Love Qt5 Widget";
+            });
+}
diff --git a/homework-day1/widget1.h b/homework-day1/widget1.h
new file mode 100644
index 0000000..9c1a302
--- /dev/null
+++ b/homework-day1/widget1.h
@@ -0,0 +1,21 @@
+#ifndef WIDGET1_H
+#define WIDGET1_H
+
+#include <QWidget>
+#include <QPushButton>
+#include <QDebug>
+
+class Widget1 : public QWidget
+{
+    Q_OBJECT
+public:
+    explicit Widget1(QWidget *parent = nullptr);
+
+public:
+    QPushButton *btn;
+
+signals:
+
+};
+
+#endif // WIDGET1_H
diff --git a/homework-day1/widget2.cpp b/homework-day1/widget2.cpp
new file mode 100644
index 0000000..f9e619b
--- /dev/null
+++ b/homework-day1/widget2.cpp
@@ -0,0 +1,19 @@
+#include "widget2.h"
+
+Widget2::Widget2(QWidget *parent) : QWidget(parent)
+{
+    setWindowTitle("题目2");
+    setFixedSize(800,600);
+
+    btn = new QPushButton("按钮",this);
+    btn->setFixedSize(200,100);
+    btn->move(10,10);
+
+    label = new QLabel("占位",this);
+    label->resize(300,200);
+    label->move(10,130);
+
+    connect(btn,&QPushButton::clicked,[&]()->void{
+                label->setText("1+1=2");
+            });
+}
diff --git a/homework-day1/widget2.h b/homework-day1/widget2.h
new file mode 100644
index 0000000..c1ada41
--- /dev/null
+++ b/homework-day1/widget2.h
@@ -0,0 +1,22 @@
+#ifndef WIDGET2_H
+#define WIDGET2_H
+
+#include <QWidget>
+#include <QLabel>
+#include <QPushButton>
+
+class Widget2 : public QWidget
+{
+    Q_OBJECT
+public:
+    explicit Widget2(QWidget *parent = nullptr);
+
+public:
+    QPushButton *btn;
+    QLabel *label;
+
+signals:
+
+};
+
+#endif // WIDGET2_H
diff --git a/homework-day1/widget3.cpp b/homework-day1/widget3.cpp
new file mode 100644
index 0000000..2991706
--- /dev/null
+++ b/homework-day1/widget3.cpp
@@ -0,0 +1,22 @@
+#include "widget3.h"
+
+Widget3::Widget3(QWidget *parent) : QWidget(parent)
+{
+    setWindowTitle("题目3");
+    setFixedSize(800,600);
+
+    btn = new QPushButton("按钮",this);
+    btn->setFixedSize(200,100);
+    btn->move(10,10);
+
+    edit1 = new QLineEdit(this);
+    edit1->move(10,120);
+    edit2 = new QLineEdit(this);
+    edit2->move(10,160);
+
+    connect(btn,&QPushButton::clicked,[&]()->void{
+                QString str1 = edit1->text();
+                QString str2 = edit2->text();
+                qDebug()<<str1+str2;
+            });
+}
diff --git a/homework-day1/widget3.h b/homework-day1/widget3.h
new file mode 100644
index 0000000..ca0542d
--- /dev/null
+++ b/homework-day1/widget3.h
@@ -0,0 +1,23 @@
+#ifndef WIDGET3_H
+#define WIDGET3_H
+
+#include <QWidget>
+#include <QPushButton>
+#include <QLineEdit>
+#include <QDebug>
+
+class Widget3 : public QWidget
+{
+    Q_OBJECT
+public:
+    explicit Widget3(QWidget *parent = nullptr);
+
+public:
+    QPushButton *btn;
+    QLineEdit *edit1,*edit2;
+
+signals:
+
+};
+
+#endif // WIDGET3_H
diff --git a/homework-day1/widget4.cpp b/homework-day1/widget4.cpp
new file mode 100644
index 0000000..caf89cc
--- /dev/null
+++ b/homework-day1/widget4.cpp
@@ -0,0 +1,27 @@
+#include "widget4.h"
+
+Widget4::Widget4(QWidget *parent) : QWidget(parent)
+{
+    setWindowTitle("题目4");
+    setFixedSize(800,600);
+
+    btn = new QPushButton("按钮",this);
+    btn->setFixedSize(200,100);
+    btn->move(10,10);
+
+    edit1 = new QLineEdit(this);
+    edit1->move(10,120);
+    edit2 = new QLineEdit(this);
+    edit2->move(10,160);
+
+    label = new QLabel("占位",this);
+    label->move(300,140);
+
+    connect(btn,&QPushButton::clicked,[&]()->void{
+                QString str1 = edit1->text();
+                QString str2 = edit2->text();
+                int res_num = str1.toInt()+str2.toInt();
+
+                label->setNum(res_num);
+            });
+}
diff --git a/homework-day1/widget4.h b/homework-day1/widget4.h
new file mode 100644
index 0000000..027ec09
--- /dev/null
+++ b/homework-day1/widget4.h
@@ -0,0 +1,24 @@
+#ifndef WIDGET4_H
+#define WIDGET4_H
+
+#include <QWidget>
+#include <QPushButton>
+#include <QLineEdit>
+#include <QLabel>
+
+class Widget4 : public QWidget
+{
+    Q_OBJECT
+public:
+    explicit Widget4(QWidget *parent = nullptr);
+
+private:
+    QPushButton *btn;
+    QLineEdit *edit1,*edit2;
+    QLabel *label;
+
+signals:
+
+};
+
+#endif // WIDGET4_H
diff --git a/homework-day1/widget5.cpp b/homework-day1/widget5.cpp
new file mode 100644
index 0000000..fae87ba
--- /dev/null
+++ b/homework-day1/widget5.cpp
@@ -0,0 +1,26 @@
+#include "widget5.h"
+
+Widget5::Widget5(QWidget *parent) : QWidget(parent)
+{
+    setWindowTitle("让Widget6消失");
+    setFixedSize(400,600);
+    move(400,300);
+
+    w6 = new Widget6;
+
+    btn = new QPushButton("显示Widget6按钮",this);
+    btn->setFixedSize(200,100);
+    btn->move(10,10);
+
+    connect(btn,&QPushButton::clicked,[&]()->void{
+                this->setWindowTitle("让Widget6消失");
+                w6->show();
+            });
+
+    connect(w6,&Widget6::stealth,[&]()->void{
+                this->setWindowTitle("Winget6消失了");
+                w6->close();
+            });
+
+
+}
diff --git a/homework-day1/widget5.h b/homework-day1/widget5.h
new file mode 100644
index 0000000..ffd653c
--- /dev/null
+++ b/homework-day1/widget5.h
@@ -0,0 +1,23 @@
+#ifndef WIDGET5_H
+#define WIDGET5_H
+
+#include <QWidget>
+#include <QPushButton>
+#include <QLabel>
+#include "widget6.h"
+
+class Widget5 : public QWidget
+{
+    Q_OBJECT
+public:
+    explicit Widget5(QWidget *parent = nullptr);
+
+private:
+    Widget6 *w6; // Widget6 类对象的指针成员
+    QPushButton *btn;
+
+signals:
+
+};
+
+#endif // WIDGET5_H
diff --git a/homework-day1/widget6.cpp b/homework-day1/widget6.cpp
new file mode 100644
index 0000000..1bab5f5
--- /dev/null
+++ b/homework-day1/widget6.cpp
@@ -0,0 +1,18 @@
+#include "widget6.h"
+
+Widget6::Widget6(QWidget *parent) : QWidget(parent)
+{
+
+    setWindowTitle("题目5-widget6");
+    setFixedSize(400,600);
+    move(900,300);
+
+    btn = new QPushButton("隐身按钮",this);
+    btn->setFixedSize(200,100);
+    btn->move(10,10);
+
+
+    connect(btn,&QPushButton::clicked,[&]()->void{
+                emit this->stealth(); // 发送隐身信号
+            });
+}
diff --git a/homework-day1/widget6.h b/homework-day1/widget6.h
new file mode 100644
index 0000000..b38a40b
--- /dev/null
+++ b/homework-day1/widget6.h
@@ -0,0 +1,22 @@
+#ifndef WIDGET6_H
+#define WIDGET6_H
+
+#include <QWidget>
+#include <QPushButton>
+
+class Widget6 : public QWidget
+{
+    Q_OBJECT
+public:
+    explicit Widget6(QWidget *parent = nullptr);
+
+public:
+    QPushButton *btn; // 隐身信号按钮
+
+
+signals:
+    void stealth(); // 隐身
+
+};
+
+#endif // WIDGET6_H
diff --git a/homework-day1/widget7.cpp b/homework-day1/widget7.cpp
new file mode 100644
index 0000000..83b0379
--- /dev/null
+++ b/homework-day1/widget7.cpp
@@ -0,0 +1,79 @@
+#include "widget7.h"
+#include <QDebug>
+
+Widget7::Widget7(QWidget *parent) : QWidget(parent)
+{
+    setWindowTitle("题目6");
+    setFixedSize(800,600);
+
+    vct = new QVector<QString>();
+
+    btn1 = new QPushButton("张三",this);
+    btn1->move(10,20);
+    btn2 = new QPushButton("李四",this);
+    btn2->move(10,70);
+    btn3 = new QPushButton("王五",this);
+    btn3->move(10,120);
+    btn4 = new QPushButton("赵六",this);
+    btn4->move(10,170);
+    btn5 = new QPushButton("孙七",this);
+    btn5->move(10,220);
+
+    btn_show = new QPushButton("打印",this);
+    btn_show->move(150,20);
+    btn_restart = new QPushButton("重新再来",this);
+    btn_restart->move(150,70);
+
+    connect(this,&Widget7::my_signal,this,&Widget7::my_handler);
+
+
+    connect(btn1,&QPushButton::clicked,[&]{
+        QString str = btn1->text();
+        emit this->my_signal(str);
+        emit this->studentSelected(str);
+    });
+
+    connect(btn2,&QPushButton::clicked,[&]{
+        QString str = btn2->text();
+        emit this->my_signal(str);
+        emit this->studentSelected(str);
+    });
+
+    connect(btn3,&QPushButton::clicked,[&]{
+        QString str = btn3->text();
+        emit this->my_signal(str);
+        emit this->studentSelected(str);
+    });
+
+    connect(btn4,&QPushButton::clicked,[&]{
+        QString str = btn4->text();
+        emit this->my_signal(str);
+        emit this->studentSelected(str);
+    });
+
+    connect(btn5,&QPushButton::clicked,[&]{
+        QString str = btn5->text();
+        emit this->my_signal(str);
+        emit this->studentSelected(str);
+    });
+
+    // 打印学生
+    connect(btn_show,&QPushButton::clicked,[&]()->void{
+                QVector<QString>::iterator it = vct->begin();
+                while(it != vct->end()){
+                    qDebug()<<*it;
+                    it++;
+                }
+            });
+
+    connect(btn_restart,&QPushButton::clicked,[&]()->void{
+                vct->clear(); // 清空容器
+            });
+}
+
+void Widget7::my_handler(const QString &str)
+{
+
+    //    qDebug()<<str;
+    vct->append(str); // 向 QVector 中添加学生
+}
diff --git a/homework-day1/widget7.h b/homework-day1/widget7.h
new file mode 100644
index 0000000..1753ce8
--- /dev/null
+++ b/homework-day1/widget7.h
@@ -0,0 +1,31 @@
+#ifndef WIDGET7_H
+#define WIDGET7_H
+
+#include <QWidget>
+#include <QPushButton>
+#include <QVector>
+
+class Widget7 : public QWidget
+{
+    Q_OBJECT
+public:
+    explicit Widget7(QWidget *parent = nullptr);
+    ~Widget7()
+    {
+        delete vct;
+    }
+private:
+    QVector<QString> *vct;
+    QPushButton *btn1,*btn2,*btn3,*btn4,*btn5;
+    QPushButton *btn_show,*btn_restart; // 显示按钮，重来按钮
+
+public slots:
+    void my_handler(const QString &str);
+
+signals:
+    void my_signal(const QString &str);
+    void studentSelected(const QString &stuName); // 学生选择信号
+
+};
+
+#endif // WIDGET7_H
diff --git a/homework-day1/widget8.cpp b/homework-day1/widget8.cpp
new file mode 100644
index 0000000..79a0a30
--- /dev/null
+++ b/homework-day1/widget8.cpp
@@ -0,0 +1,26 @@
+#include "widget8.h"
+
+Widget8::Widget8(QWidget *parent) : QWidget(parent)
+{
+    judgeCount = 0;
+}
+
+void Widget8::receviceStudentSelection(const QString &stuName)
+{
+    selectedStudents.insert(stuName);
+    judgeCount++;
+
+    if(judgeCount == 3)
+    {
+        // 所有评委选择完毕
+        qDebug()<<"学生名单: ";
+        for(const QString &stu: selectedStudents)
+        {
+            qDebug()<<stu;
+        }
+
+        // 清空数据，准备下一轮评选
+        selectedStudents.clear();
+        judgeCount = 0;
+    }
+}
diff --git a/homework-day1/widget8.h b/homework-day1/widget8.h
new file mode 100644
index 0000000..347feef
--- /dev/null
+++ b/homework-day1/widget8.h
@@ -0,0 +1,24 @@
+#ifndef WIDGET8_H
+#define WIDGET8_H
+
+#include <QWidget>
+#include <QSet>
+#include <QDebug>
+
+class Widget8 : public QWidget
+{
+    Q_OBJECT
+public:
+    explicit Widget8(QWidget *parent = nullptr);
+
+private:
+    QSet<QString> selectedStudents;
+    int judgeCount;
+
+public slots:
+    void receviceStudentSelection(const QString &stuName);
+
+
+};
+
+#endif // WIDGET8_H