【C++】简易的仿Vector类
By
e2hang
at 2025-05-21 • 0人收藏 • 104人看过
#ifndef VECTOR_H
#define VECTOR_H
#include <iostream>
template<class T>
class Vector {
private:
T** p;
int hang;
int lie;
public:
Vector();
Vector(int m, int n);
Vector& operator=(const Vector& x);
T* operator[](int x);
void AlterElement(int m, int n, T x);
~Vector();
};
template<class T>
Vector<T>::Vector() {
p = nullptr;
hang = 0;
lie = 0;
}
template<class T>
Vector<T>::Vector(int m, int n) {
hang = m;
lie = n;
p = new T * [m];
for (int i = 0;i < m;i++) {
p[i] = new T[n];
}
}
template<class T>
Vector<T>::~Vector() {
if (p) {
for (int i = 0; i < hang; i++) {
delete[] p[i];
}
delete[] p;
}
}
template<class T>
Vector<T>& Vector<T>::operator=(const Vector& x) {
if (p) {
for (int i = 0; i < hang; i++) {
delete[] p[i];
}
delete[] p;
}
hang = x.hang;
lie = x.lie;
p = new T * [hang];
for (int i = 0; i < hang; i++) {
p[i] = new T[lie];
for (int j = 0; j < lie; j++) {
p[i][j] = x.p[i][j];
}
}
return *this;
}
template<class T>
T* Vector<T>::operator[](int x)
{
return p[x];
}
template<class T>
inline void Vector<T>::AlterElement(int m, int n, T x)
{
p[m][n] = x;
}
#endif // !VECTOR_H实现:(对于二维数组)
1、赋值运算
2、深拷贝
3、泛型编程、使用模板、兼容不同类型的数据
4、重载[]以访问数组每个元素
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