小编Huỳ*_*Huy的帖子

我正在练习 C++，但发现了一些问题：

#include <iostream>
#include <string>
using namespace std;

int main() {
    int a = 2;
    {
        cout << a;
        cout << "\n";
        float a = a / 2;
        cout << "a= a/2 = ";
        cout << a;

    }
    cout << "\n";
    a = 2;
    {
        cout << a;
        cout << "\n";
        float b = a / 2;
        cout << "b= a/2 = ";
        cout << b;

    }
}

这个回报：

2 
a= a/2 = 0 
2 
b= a/2 = 1 …