#include <iostream>
using namespace std;

int main()
{
    char n;
    cout << "输入a-z:" ;
    cin >> n;
    n = n - 32;
    cout << n << endl;
    return 0;
}

输入一个小写字母,输出其大写字母。

分析下面的程序,会输出什么?

#include <iostream>
using namespace std;

int main()
{
    char n;
    n = 65;
    cout << n << endl;
    return 0;
}

结果输出一个大写字母A

再一个程序

#include <iostream>
using namespace std;

int main()
{
    char n;
    int s;
    n = 'a';
    s = n - 32;
    cout << n << endl;
    cout << s << endl;
    n = s;
    cout << n << endl;
    return 0;
}