c++ - 字符的位表示 C++

Question

这是我的字符位表示程序。但我不知道它向我展示的是正确还是错误的表示？有可疑单位(红色)。

你能解释一下这是什么(如果它是正确的)或者如果这些单位不应该是我的代码有什么问题吗？谢谢

#include "stdafx.h"
#include "iostream"
using namespace std;

struct byte {
   unsigned int a:1;
   unsigned int b:1;
   unsigned int c:1;
   unsigned int d:1;
   unsigned int e:1;
   unsigned int f:1;
   unsigned int g:1;                   
   unsigned int h:1;
};

union SYMBOL {                              
    char letter;                    
    struct byte bitfields;
};

int main() {                                                              
    union SYMBOL ch; 
    cout << "Enter your char: ";
    while(true) { 

        ch.letter = getchar();
        if(ch.letter == '\n')  break; 

        cout << "You typed: " << ch.letter << endl;
        cout << "Bite form = ";
        cout << ch.bitfields.h;
        cout << ch.bitfields.g;
        cout << ch.bitfields.f;
        cout << ch.bitfields.e;
        cout << ch.bitfields.d;
        cout << ch.bitfields.c;
        cout << ch.bitfields.b;
        cout << ch.bitfields.a;
        cout << endl << endl;

    }
}

Answer 1

参见 ASCII表以了解您获得的输出:

• a十进制为97，97二进制为01100001
• b十进制为98，97二进制为01100010

等等。