【C++】使用函数调用改写循环练习：判断一个数是否为素数+字符串分割+获取一个数组的最小值以及下标

#include 
#include 
#include 

using namespace std;

 

// 判断一个数是否为素数
bool isPrime(int num, int value)
{
    if (value == num - 1 || num == 2 || num == 1)
        return true;
    return (num % value == 0) ? false : isPrime(num, ++value);
}

void test_sushu()
{
    cout << "please input a number：";
    int num;
    cin >> num;
    if (isPrime(num, 2))
        cout << "it is a prime" << endl;
    else
        cout << "it isn't a prime" << endl;
}

// 字符串分割练习改写
void split(string str, int i, char ch)
{
    if(i==str.length()-1) return;
    else {
       if(str.at(i)!=ch) cout< array[i])
        { index = i + 1;value = array[i];}
       getMin(array, i + 1, size, index, value);
    }
}



int main()
{
    cout << "-------------------begin--------------------------n"
         << endl;

    test_sushu();

    cout << "-------------------begin--------------------------n"
         << endl;

    int array[] = {10, 2, 6, 1, 4, 5, 7, 1, 9, 14};
    getMin(array, 0, 10, 0, array[0]);

    cout << "-------------------begin--------------------------n"
         << endl;

    string str = "Nice to meet you !";
    split(str,0,' ');

    cout << "n--------------------end----------------------------" << endl;
    return 0;
}

运行效果如下：