填充数组

Question

你可以帮我解决用随机数填充5个圆圈阵列的问题.随机数将是圆的半径.这是我的代码:

#include <iostream>
#include <time.h>
using namespace std;

int main()
{
    // Array 2, below section is to populate the array with random radius
    float CircleArrayTwo [5]; // store the numbers
    const int NUM = 5; // Display 5 random numbers

    srand(time(NULL)); // seed the generator

    for(int i = 0; i < NUM; ++i)
    {
        CircleArrayTwo[i] = rand()%10;
    }

    cout << "Below is the radius each of the five circles in the second array. " <<   endl;
    cout << CircleArrayTwo << endl;

    system("PAUSE");
    return 0;
}

目前输出如下:

下面是第二个数组中五个圆圈的半径.002CF878

我哪里错了？

任何帮助深表感谢

Answer 1

您正在打印数组的第一个元素的地址.您可以遍历数组并打印每个元素:

for(int i = 0; i < NUM; ++i)
{
    std::cout << CircleArrayTwo[i] << ", ";
}
std::cout << "\n";

或者,如果您有C++ 11支持,

for (auto& x : CircleArrayTwo) {
   std::cout << x << ", ";
}    
std::cout << "\n";