C++ 输入一个字符 然后输出该字符开头的连续3个字符以及对应ASCII码

编写程序 从键盘输入一个字符 然后在屏幕上输出该字符开头的连续3个字符以及对应ASCII码

#include <iostream>
using namespace std;
int main(){
    char c;
    cin>>c;
    cout<<c<<"\t"<<char(c+1)<<"\t"<<char(c+2)<<endl;
    cout<<int(c)<<"\t"<<int(c+1)<<"\t"<<int(c+2);
    return 0;
}

#include <iostream>
using namespace std;
int main()
{
    char c;
    cin>>c;
    cout<<c-1<<","<<c<<","<<c+1<<endl;
    cout<<(int)(c-1)<<","<<(int)c<<","<<(int)(c+1)<<endl;
    return 0;
}