有以下程序 main() { unsigned char a,b; a=4|3; b=4&3; printf(“%d %d\n”,a,b(; } 执行后输出结果是()
A.7 0
B.0 7
C.1 1
D.43 0
A.7 0
B.0 7
C.1 1
D.43 0
有以下程序#include <stdio.h>main() { int x=1, y=2, z=3; if(x>y) if(y<z) printf("%d", ++z); else printf("%d", ++y); printf("%d\n", x++);}程序的运行结果是A.331 B.41 C.2 D.1
A.6
B.8
C.12
D.10
A.741
B.963
C.852
D.875421
有以下程序,其中%u表示按无符号整数输出()
main()
{unsigned int x=0xFFFF; /* x的初值为十六进制数 */
printf(“%u\n”,x);
}
程序运行后的输出结果是()。
A.-1
B.65535
C.32767
D.0xFFFF
(21 )有以下程序
# include (stdio.h >
main ()
{ int a = l ; b = 2 ;
for (; a < 8 ; a++ ) { b+=a ; a+=2 ; }
printf (" %d , %d \ n ", a , b ) ;
}
程序运行后的输出结果是
A ) 9 , 18
B ) 8 , 11
C ) 7 , 11
D ) 10 , 14
A.409
B.277
C.1
D.91
有以下程序
struct STU
{ char num[10]; float score[3]; };
main()
{struct STU s[3]={{"20021",90,95,85},
{"20022",95,80,75},
{ "20023",100,95,90},
},*p=s;
int i; float sum=0;
for(i=0;i<3;i++)
sum=sum+p->score[i];
printf("%6.2f\n",sum);
}
程序运行后的输出结果是
A.260.00
B.270.00
C.280.00
D.285.00
A.0
B.1
C.2
D.3
A.26
B.19
C.10
D.20
A.9
B.11
C.19
D.21