实例 C++ 创建指针变量

#include <iostream>

#include <string>

using namespace std;

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int main() {

  string food = "Pizza";  // A string variable

  string* ptr = &food;  // A pointer variable that stores the address of food

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  // Output the value of food

  cout << food << "\n";

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  // Output the memory address of food

  cout << &food << "\n";

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  // Output the memory address of food with the pointer

  cout << ptr << "\n";

  return 0;

}

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