53 lines
1.0 KiB
C++
53 lines
1.0 KiB
C++
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#include "MyArray.h"
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MyArray::MyArray()
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{
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this->mCapacity = 100;
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this->mSize = 0;
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this->pAdress = new int[this->mCapacity]; // 在堆开辟空间
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}
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// 有参构造函数，用户指定容量初始化
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MyArray::MyArray(int capacity)
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{
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this->mCapacity = capacity;
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this->mSize = 0;
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this->pAdress = new int[mCapacity]; // 在堆开辟空间
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}
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// 根据位置添加元素
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void MyArray::SetData(int pos, int val)
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{
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if (pos < 0 || pos > mCapacity - 1)
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return; // 位置超出数组范围
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pAdress[pos] = val; // 当位置合法时，在该位置传入值 val
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}
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// 获得指定位置数据
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int MyArray::GetData(int pos)
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{
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return pAdress[pos];
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}
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// 尾插法
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void MyArray::PushBack(int val)
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{
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if (mSize >= mCapacity)
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return;
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this->pAdress[mSize] = val;
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this->mSize++;
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}
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// 获得长度
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int MyArray::GetLength()
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{
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return this->mSize;
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}
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// 析构函数，释放数组空间
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MyArray::~MyArray()
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{
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if (this->pAdress != nullptr)
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delete[] this->pAdress;
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}
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