直接上程序说明函数指针是怎么写的:

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#include <iostream>
using namespace std;

int power(int a)
{
return a*a;
}

int cube(int a)
{
return a*a*a;
}

void aPrint(int a)
{
cout<<"test:"<<a<<endl;
}

int main()
{
int (*p)(int);
void (*print)(int);
p = power;
print = aPrint;
print((*p)(6));
p = cube;
print((*p)(6));
return 0;
}

输出:

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2
test:36
test:216