cpp: 内存地址

在 Visual Studio 调试器中使用“内存”窗口（C#、C++、Visual Basic、F#）

在调试器中查看变量的内存 - Visual Studio (Windows) | Microsoft Learn

 

?

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49

/// <summary>     /// 冒泡排序函数     /// int * arr 也可以写为int arr[]     /// </summary>     /// <param name="arr"></param>     /// <param name="len"></param>     void Geovin::bubbleSort(int* arr,int len)     {         //, int len         //int len = sizeof(arr)/sizeof(int);         for (int i = 0; i < len - 1; i++)         {             for (int j = 0; j < len - 1 - i; j++)             {                 if (arr[j] > arr[j + 1])                 {                     int temp = arr[j];                     arr[j] = arr[j + 1];                     arr[j + 1] = temp;                 }             }         }         //printArray(arr);     }     /// <summary>     /// 打印数组函数     /// </summary>     /// <param name="arr"></param>     /// <param name="len"></param>     void Geovin::printArray(int arr[],int len)     {         //int len = sizeof(arr) / sizeof(int);         for (int i = 0; i < len; i++)         {             cout << arr[i] << endl;         }     }       int arrDu[5] = {1,9,25,5,8};     int len = sizeof(arrDu) / sizeof(int);     geovin.bubbleSort(arrDu, len);     geovin.printArray(arrDu, len);       cout << "冒泡排序：" << endl;     for (auto d : arrDu)     {         cout << "" << d << "  ";     }     cout << endl;

　　

 

?

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26

int a = 10; char b; bool c; string d;   cout << "变量a的地址：" << &a << endl; cout << "变量b的地址：" << &b << endl; cout << "变量c的地址：" << &c << endl; cout << "变量d的地址：" << &d << endl; cout <<"a占用内存大小" << sizeof(a) << endl; cout << "变量b的内存地址：" << (long long)&b << endl; cout << "变量b的地址：" << (void*)&b << endl; cout << "变量b的地址：" << (int*)&b << endl;   int du = 10; //1.变量地址赋值给指针变量 cout << "du的地址:" << &du << endl;//指向变量du的首字节的地址 int* geovin2 = &du; cout << "geovin的指向" << geovin2 << endl; cout << "&geovin=" << &geovin2 << endl;//geovin自身的地址的编号 cout << "*geovin=" << *geovin2 << endl;//指向geovin的值 //2指针赋值给指针变量 int* geovindu = geovin2; cout << "geovindu的指向" << geovindu << endl; cout << "&geovindu=" << &geovindu << endl; cout << "*geovindu=" << *geovindu << endl;

　　

 

?

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111

/// <summary> /// /// </summary> /// <param name="number1"></param> /// <param name="number2"></param> void Geovin::pointFunc(int* number1, int* number2) {     int temp;     temp = *number1;     *number1 = *number2;     *number2 = temp;     cout << "number1=" << *number1 << endl;     cout << "number2=" << *number2 << endl; }   /// <summary> ///显示变量的十六进制地址的函数:varname - 变量名，addr - 变量的地址。 /// </summary> /// <param name="varname"></param> /// <param name="p"></param> void Geovin::func(string varname, void* p)//void *把其它类型的指针赋值给void*指针不需要转换 {     cout << varname << "的地址是" << p << endl; }   /// <summary> /// /// </summary> void Geovin::arryFunc() {       int arr[] = { 1,2,3,4,5,6,7,8,9,10 };       int* p = arr;             cout<<"第一个元素" << arr[0] << endl;      cout << "P:=" << p << endl;     cout << "指针访问第一个元素：" << *p << endl;     for (int i = 0; i < 100; i++)     {           cout << *p << " ";         p++;     }                   cout << endl; }   /// <summary> /// /// </summary> /// <param name="numberNO"></param> /// <param name="name"></param> void Geovin::constFunc(int numberNO, string name) {       cout << "亲爱的" << name << "我是" << numberNO <<"号" << endl; }   /// <summary> /// 显示变量的十六进制地址的函数:varname - 变量名，addr - 变量的地址。 /// </summary> /// <param name="varname"></param> /// <param name="p"></param> void func(string varname, void* p)//void *把其它类型的指针赋值给void*指针不需要转换 {     cout << varname << "的地址是" << p << endl; } /// <summary> /// /// </summary> void Geovin::diplayPoint() {       int a = 10;     char b;     bool c;     string d;       cout << "变量a的地址：" << &a << endl;     cout << "变量b的地址：" << &b << endl;     cout << "变量c的地址：" << &c << endl;     cout << "变量d的地址：" << &d << endl;     cout << "a占用内存大小" << sizeof(a) << endl;     cout << "变量b的内存地址：" << (long long)&b << endl;     cout << "变量b的地址：" << (void*)&b << endl;     cout << "变量b的地址：" << (int*)&b << endl;       int du = 10;     //1.变量地址赋值给指针变量     cout << "du的地址:" << &du << endl;//指向变量du的首字节的地址     int* geovin2 = &du;     cout << "geovin的指向" << geovin2 << endl;     cout << "&geovin=" << &geovin2 << endl;//geovin自身的地址的编号     cout << "*geovin=" << *geovin2 << endl;//指向geovin的值     //2指针赋值给指针变量     int* geovindu = geovin2;     cout << "geovindu的指向" << geovindu << endl;     cout << "&geovindu=" << &geovindu << endl;     cout << "*geovindu=" << *geovindu << endl;       //常量指针，语法：const 数据类型     int aa = 3, bb = 8;     const int* pp = &bb;     const int* cc = &aa;     cc = pp;     //     // //2      //int* pp = &bb;      //*pp = 13;     bb = 13;     cout << "a=" << a << ",*p=" << *pp << endl; }

　　

 

?

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27

Geovin geovin; //随机抽取字符串 //geovin.DisplayRomd();   //geovin.DisplayRomd(1);   //显示十六进制地址 int aaa; char bbb; //cout << "a的指针是" <<(void*)&a << endl;//void*表示强制用十六进制转换 //cout << "b的指针是" <<(void*)&b << endl; geovin.func("a", &aaa); geovin.func("b", &bbb);   geovin.arryFunc();     int ddu = 10; int ddu2 = 50;   geovin.pointFunc(&ddu, &ddu2);     int add = 1; string namedd = "geovindu";   geovin.constFunc(add,namedd);