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#include<stdio.h>
main()
{
        char a=0x95,b,c;
        b=(a & 0x0f)<<4;
        c=(a & 0xf0)>>4;
        a=b | c;
        printf("a=%d",a);
}£¨vc6.0£©
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a=10010101
b=00000101<<4=01010000
c=10010000>>4=11111001 »òÕß 00001001(²»Ò»¶¨ÊDz¹1µÄ¡­¡­)
a=11111001 »òÕß 01011001
01011001=89
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