哈哈了

SoftwareDesign/Code/ex01/main.cpp

@@ -1,6 +1,7 @@
+#include "../inc/matrix.hpp"
 #include <stdio.h>
 int main()
 {
-    printf("hello world");
-    return 0;
-}
+    Matrix<int> a(2,2);
+    printf("哈哈了");
+}

SoftwareDesign/Code/inc/matrix.hpp

@@ -0,0 +1,54 @@
+#ifndef _MATRIX_HPP_
+#define _MATRIX_HPP_
+
+#include "../inc/vector.hpp"
+
+template <class T>
+class Matrix
+{
+private:
+    int _height;
+    int _width;
+    Vector<T> *_mat;
+
+protected:
+
+public:
+    
+    // 确定矩阵元素大小，不初始化
+    Matrix(int w, int h);
+    // 以相同值初始化矩阵元素
+    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
+    Matrix(const Matrix &another);
+    //只读访问内容
+    const T get(int w, int h) const;
+    //运算符重载
+    T &operator[](int i) { return _mat[i]; }
+};
+
+template <class T>
+Matrix<T>::Matrix(int w, int h)
+{
+    _width = w;
+    _height = h;
+    _mat = new Vector<T>(w * h);
+}
+
+template <class T>
+Matrix<T>::Matrix(int w, int h, T init_value)
+{
+    _width = w;
+    _height = h;
+    _mat = new Vector<T>(w * h, init_value);
+}
+
+template <class T>
+const T Matrix<T>::get(int w, int h) const
+{
+    return _mat[w * _width + h];
+}
+
+#endif

SoftwareDesign/Code/inc/vector.hpp

@@ -0,0 +1,201 @@
+#ifndef _VECTOR_HPP_
+#define _VECTOR_HPP_
+
+#include <iostream>
+
+template <class T>
+class Vector
+{
+private:
+  T *_v;
+  int _len;
+  int _used;
+
+  void expand(); //扩容
+  void shrink(); //缩容
+
+protected:
+  void adjust(); //调整容量接口
+
+public:
+  //无参数构造函数
+  Vector();
+
+  //初始长度构造函数
+  Vector(int len);
+
+  //构造函数-定义指定长度，相同初始值的向量
+  // len 初始长度
+  // value 初始值
+  Vector(int len, T value);
+
+  //析构函数
+  ~Vector() { delete[] _v; }
+
+  //获取值
+  T get(int a) const;
+
+  //操作符重载
+  T& operator[](int i);
+
+  //某处更改为某值
+  T put(int a, T value);
+
+  //获取已使用数量
+  int getused() const { return _used; }
+
+  //模扩张到某值
+  void expandTo(int a);
+
+  int search(T value);
+
+  void swap(int a, int b);
+
+  int insert(int locate, int value);
+
+  int remove(int locate, int value);
+
+  int remove_sorted(int value);
+
+  int find(int value);
+
+  void bubbleSort();
+
+  void printall();
+
+  int getlen();
+
+  int count(int value);
+
+  void mergeSort(int lo, int hi);
+};
+
+template <class T>
+Vector<T>::Vector()
+{
+  _used = 1;
+  _len = 2;
+  _v = new T[_len];
+}
+
+template <class T>
+Vector<T>::Vector(int len)
+{
+  _used = len;
+  _len = 2 * len;
+  _v = new T[_len];
+}
+
+template <class T>
+Vector<T>::Vector(int len, T value)
+{
+  _used = len;
+  _len = 2 * len;
+  _v = new T[_len];
+  for (int i = 0; i < _len; i++)
+  {
+    _v[i] = value;
+  }
+}
+
+template <class T>
+T Vector<T>::get(int a) const
+{
+
+  try
+  {
+    if (a >= 0 && a < _used)
+      return _v[a];
+    else
+      throw "Error: Get vector data out of range!\n";
+  }
+
+  //异常处理
+  catch (const char *msg)
+  {
+    std::cout << msg;
+    return 0;
+  }
+}
+
+template <class T>
+T& Vector<T>::operator[](int a)
+{
+  try
+  {
+    if (a >= 0 && a < _used)
+      return _v[a];
+    else
+      throw "Error: Request vercor data out of range!\n";
+  }
+
+  //异常处理
+  catch (const char *msg)
+  {
+    std::cout << msg;
+    return 0;
+  }
+}
+
+template <class T>
+T Vector<T>::put(int a, T value)
+{
+
+  //若不够，就扩容
+  while (a > _used - 1)
+  {
+    _used++;
+    adjust();
+  }
+
+  _v[a] = value;
+}
+
+template <class T>
+void Vector<T>::expandTo(int a)
+{
+  while (a > _used - 1)
+  {
+    _used++;
+    adjust();
+  }
+}
+
+template <class T>
+void Vector<T>::expand()
+{
+  int old_len = _len;
+  _len = _len << 1;
+  T *p = new T[_len];
+
+  for (int i = 0; i < old_len; i++)
+    p[i] = _v[i];
+
+  delete[] _v;
+  _v = p;
+}
+
+template <class T>
+void Vector<T>::shrink()
+{
+  _len = _len >> 1;
+  T *p = new T[_len];
+
+  for (int i = 0; i < _used; i++)
+    p[i] = _v[i];
+
+  delete[] _v;
+  _v = p;
+}
+
+template <class T>
+void Vector<T>::adjust()
+{
+  if (((double)_used / (double)_len) < 0.25)
+    shrink();
+  else if (((double)_used / (double)_len) > 0.75)
+    expand();
+  return;
+}
+
+#endif