常见的几个运算符号测试程序

main()
{ int  A, B, C, D, E, x, y;
 x=7;
 y=2;
 A=x+y;
 B=x-y;
 C=x*y;
 D=x/y;
 E=x%y;
} //模拟时，游标放在此，再按运行至游标按钮
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main()
{ unsigned char  A, B, C, D, E, F, x, y;
 x=7;
 y=2;
 A=(x==y);
 B=(x!=y);
 C=(x>y);
 D=(x  E=(x>=y);
 F=(x<=y);
} //模拟时，游标放在此，再按运行至游标钮 
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main()
{ unsigned char  A, B, C, x, y, z;
 x=7;
 y=2;
 z=5;
 A=(x>y)&&(y  B=(x==y)||(y<=z);
 C=!(x>z);
} //模拟时，游标放在此，再按运行至游标钮 
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main()
{ char  A, B, C, D, E, F, x, y;
 char  a1, a2, a3, a4, a5, a6;
 x=0x25; /* 00100101 */
 y=0x73; /* 01110011 */
 A=x&y;
 B=x|y;
 C=x^y;
 D=~x;
 E=x<<3;
 F=x>>4;
 a1=A;a2=B,a3=C,a4=D,a5=E,a6=F; //辅助观察运算状况 
} //模拟时，游标放在此，再按运行至游标钮
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main()
{ unsigned  char A=0x52, B=0x3a, C=0x01, D=0x01, 
   E=0xaa, F=0x11, G=0xf0, H=0x1f,
    I=0x55, J=0x68, K=0x75, x=0x96; 
 unsigned  char a1,a2,a3,a4,a5,a6,a7,a8,a9,a10,a11;
 A=x; // A=x=0x96 
 B+=x; // B=B+x=0x3a+0x96=0xd0 
 C-=x; // C=C-x=0x01-0x96=0x6b 
 D*=x; // D=D*x=0x15*0x96 
 E/=x;  // E=E/x=0xaa/0x96=0x01
 F%=x;  // F=F%x=0x11%0x96=0x11 
 G&=x;  // G=G&x=0xf0&0x96=0x90 
 H|=x;  // H=H|x=0x1f/0x96=0x9f 
 I^=x;  // I=I^x=0x55^0x96=0xc3 
 J<<=2; // J=J<<2=0xa0 
 K>>=3;  // K=K>>3=0x0e 
 a1=A;a2=B;a3=C;a4=D;a5=E;a6=F; //辅助观察运算状况 
 a7=G;a8=H;a9=I;a10=J;a11=K;//辅助观察运算状况 
} //模拟时，游标放在此，再按运行至游标钮
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main()
{ char x=5,y=10; 
 x++;  // x=x+1 
 y--;  // y=y-1
} //模拟时，游标放在此，再按运行至游标钮