字符转二进制_C++实现

#include <iostream>
#include <stdlib.h>

using namespace std;

void outc(char c)
{
unsigned char k = 0x80;
for (int i=0; i<8; i++, k >>= 1){
if (c & k){
printf("1");
}else{
printf("0");
}
}
printf(" ");
}

int main (){

char str[]="DATA";
for(int i=0; str[i]; i++){
outc(str[i]);
}

system("pause");
return true;
}

#include <iostream>
#include <stdlib.h>

using namespace std;

void DecToBin(unsigned int dec,char ch[] ){

int i = 7;
while(i >= 0) {
int temp  = dec;
temp = temp >> i;
ch[8-i-1] = (temp & 1)+'0';
i--;
}
}

int main() {
char ch1[9];
DecToBin(1,ch1);
ch1[8] = '\0';
cout<<ch1<<endl;

system("pause");
return true;
}