diff --git a/SoftwareDesign/Code/ex01/main.cpp b/SoftwareDesign/Code/ex01/main.cpp
index caee0c6..ca707ad 100644
--- a/SoftwareDesign/Code/ex01/main.cpp
+++ b/SoftwareDesign/Code/ex01/main.cpp
@@ -1,7 +1,23 @@
+/*
+ * @Author: iR
+ * @Date: 2022-03-11 20:22:54
+ * @LastEditors: iR
+ * @LastEditTime: 2022-03-12 12:30:06
+ * @FilePath: \Code\ex01\main.cpp
+ * @Description:
+ *
+ * Copyright (c) 2022 by iR, All Rights Reserved.
+ */
+
 #include "../inc/matrix.hpp"
 #include <stdio.h>
 int main()
 {
-    Matrix<int> a(2,2);
-    printf("哈哈了");
+    double data[] = {1, 2, 3, 4};
+    Matrix<double> a(2, 2, data);
+    Matrix<double> b(2, 2, 5);
+    Matrix<double> c = a;
+    Matrix<double> d;
+    
+    return 0;
 }
diff --git a/SoftwareDesign/Code/inc/matrix.hpp b/SoftwareDesign/Code/inc/matrix.hpp
index f34b1fa..9f9d727 100644
--- a/SoftwareDesign/Code/inc/matrix.hpp
+++ b/SoftwareDesign/Code/inc/matrix.hpp
@@ -1,6 +1,19 @@
+/*
+ * @Author: iR
+ * @Date: 2022-03-11 16:44:46
+ * @LastEditors: iR
+ * @LastEditTime: 2022-03-12 12:30:44
+ * @FilePath: \Code\inc\matrix.hpp
+ * @Description:
+ *
+ * Copyright (c) 2022 by iR, All Rights Reserved.
+ */
 #ifndef _MATRIX_HPP_
 #define _MATRIX_HPP_
 
+#include <iostream>
+#include <stdio.h>
+
 #include "../inc/vector.hpp"
 
 template <class T>
@@ -12,29 +25,87 @@ private:
     Vector<T> *_mat;
 
 protected:
-
 public:
-    
-    // 确定矩阵元素大小，不初始化
+    /**
+     * @description: 极度缺省初始化, 大小为2*2, 初值为0
+     * @param {int} w
+     * @param {int} h
+     */
+    Matrix();
+    /**
+     * @description: 缺省初始化，初值为0
+     * @param {int} w
+     * @param {int} h
+     */
     Matrix(int w, int h);
-    // 以相同值初始化矩阵元素
+
+    /**
+     * @description: 以相同值初始化矩阵元素
+     * @param {int} w
+     * @param {int} h
+     * @param {T} init_value
+     */
     Matrix(int w, int h, T init_value);
-    // 以顺序访问数组的值初始化矩阵元素
-    Matrix(int w, int h, const double *elements);
-    // 以另一个矩阵初始化当前矩阵的元素，实际是元素拷贝
+
+    /**
+     * @description: 以顺序访问数组的值初始化矩阵元素
+     * @note:  必须给出正确的数组,因为在函数内无法判定数组是否正确
+     * @param {int} w
+     * @param {int} h
+     * @param {const T} elements[]
+     */
+    Matrix(int w, int h, const T elements[]);
+
+    /**
+     * @description: 以另一个矩阵初始化当前矩阵的元素，实际是元素拷贝
+     * @param {Matrix} &another
+     */
     Matrix(const Matrix &another);
-    //只读访问内容
+
+    /**
+     * @description: 只读访问内容
+     * @param {int} w
+     * @param {int} h
+     * @return {*}
+     */
     const T get(int w, int h) const;
-    //运算符重载
-    T &operator[](int i) { return _mat[i]; }
+
+    /**
+     * @description:运算符重载
+     */
+    const T operator[](int i) const { return _mat->get(i); }
+
+    /**
+     * @description:运算符重载
+     */
+    T operator=(const Matrix &b);
+
+    /**
+     * @description: 可读可写访问
+     * @param {int} w
+     * @param {int} h
+     * @return {*}
+     */
+    T &at(int w, int h) { return _mat[h * _width + w]; }
+
+    const int getWidth() const { return _width; }
+    const int getHeight() const { return _height; }
 };
 
+template <class T>
+Matrix<T>::Matrix()
+{
+    _width = 2;
+    _height = 2;
+    _mat = new Vector<T>(2 * 2, 0);
+}
+
 template <class T>
 Matrix<T>::Matrix(int w, int h)
 {
     _width = w;
     _height = h;
-    _mat = new Vector<T>(w * h);
+    _mat = new Vector<T>(w * h, 0);
 }
 
 template <class T>
@@ -45,10 +116,68 @@ Matrix<T>::Matrix(int w, int h, T init_value)
     _mat = new Vector<T>(w * h, init_value);
 }
 
+template <class T>
+Matrix<T>::Matrix(int w, int h, const T elements[])
+{
+    int size = w * h;
+    try
+    {
+
+        // if (w * h > size)
+        //     throw "Error: The number of array elements is less than the matrix elements.\n";
+        // if (w * h < size)
+        //     throw "Error: The number of array elements is greater than the matrix elements.\n";
+
+        _width = w;
+        _height = h;
+        _mat = new Vector<T>;
+        for (int i = 0; i < size; i++)
+            _mat->put(i, elements[i]);
+    }
+    catch (const char *msg)
+    {
+        std::cout << msg << "SIZE:" << size << std::endl;
+        ;
+    }
+}
+template <class T>
+Matrix<T>::Matrix(const Matrix &another)
+{
+    try
+    {
+        _width = another.getWidth();
+        _height = another.getHeight();
+        _mat = new Vector<T>;
+        for (int i = 0; i < _width * _height; i++)
+            _mat->put(i, another[i]);
+    }
+    catch (const char *msg)
+    {
+        std::cout << msg;
+    }
+}
+
+template <class T>
+T Matrix<T>::operator=(const Matrix &another)
+{
+    try
+    {
+        _width = another.getWidth();
+        _height = another.getHeight();
+        _mat = new Vector<T>;
+        for (int i = 0; i < _width * _height; i++)
+            _mat->put(i, another[i]);
+    }
+    catch (const char *msg)
+    {
+        std::cout << msg;
+    }
+}
+
 template <class T>
 const T Matrix<T>::get(int w, int h) const
 {
-    return _mat[w * _width + h];
+    return _mat[h * _width + w];
 }
 
 #endif
\ No newline at end of file
diff --git a/SoftwareDesign/Code/inc/vector.hpp b/SoftwareDesign/Code/inc/vector.hpp
index 4df2b5e..dd7bb47 100644
--- a/SoftwareDesign/Code/inc/vector.hpp
+++ b/SoftwareDesign/Code/inc/vector.hpp
@@ -1,3 +1,13 @@
+/*
+ * @Author: iR
+ * @Date: 2022-03-11 16:47:31
+ * @LastEditors: iR
+ * @LastEditTime: 2022-03-12 12:20:35
+ * @FilePath: \Code\inc\vector.hpp
+ * @Description: 
+ * 
+ * Copyright (c) 2022 by iR, All Rights Reserved. 
+ */
 #ifndef _VECTOR_HPP_
 #define _VECTOR_HPP_
 
@@ -149,6 +159,7 @@ T Vector<T>::put(int a, T value)
   }
 
   _v[a] = value;
+  return _v[a];
 }
 
 template <class T>