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char a[4] ={'1', '1', '1', '0'};
char b = 'e';
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C/C++ code:

#include<stdio.h>
int main()
{
char a[4] ={'1', '1', '1', '0'};
char b=0;
int i;
for(i=0;i<4;i++)
{
b|=a[i]-'0';
b<<=1;
}
printf("%x\n",b);
return 0;
}



a[4]ûÓб»³õʼ»¯µÄ¡£¡£»òÕß˵²»´æÔÚµÄ

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C/C++ code
#include <stdio.h>int main()
{char a[4]={'1','1','1','0'};char b=0;int i;for(i=0;i <4;i++)
  {
      b < <=1;    //ÕâÁ½¾ä»°Òª»»¸öλÖÃ
      b|=a[i]-'0';
   
  }
  printf("%x\n",b);return0;
}



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