(int)a和(int&)a的区别

#include <iostream>

using namespace std;

int main(int argc, char** argv) {

    float a = 1.0f;

    cout<<(int)a<<endl;

    cout<<&a<<endl;

    cout<<(int&)a<<endl;

    cout<<endl;

    float b = 0.0f;

    cout<<(int)b<<endl;

    cout<<&b<<endl;

    cout<<(int&)b<<endl;

    return 0;
}

(int&)a：把a所在的内存的二进制编码以整型输出,