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计算机二级C语言所有选择题真题.pdf
C
www.zeyucn.org
C
A
break continue
exit()
switch
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exit(0)
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exit()
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switch
printf("%d\n" n);
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continue
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A
10
A int i=10;do{ i=i+1;}while(i<0);
B int i=5; do{ i+=1;} while(i>0);
C int i=1; do{ i+=2;} while(i!=10);
D int i=6; do{ i-=2;} while(i!=1);
A
do-while
1
C
D
B
10
A
A
#include
int i, n;
for( i=0; i<8; i++ )
{ n = rand( ) % 5;
switch (n)
{ case 1:
case 3: printf("%d \n", n); break;
case 2:
case 4: printf("%d \n", n); continue;
case 0: exit(0);
}
printf("%d \n",n);
}
n
exit(0)
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A
main();
{/*/ programming /*/
printf("programming!\n"); }
- 1 -
www.zeyucn.org
B #include
main()
{/* programming */
printf("programming!\n"); }
C #include
main()
{/*/* programming */*/
printf("programming!\n"); }
D include
main()
{/* programming */
printf("programming!\n"); }
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A
#include
main()
{ int a=-1, b=-1;
while(++a)
++b;
printf("%d,%d\n", a,b);
}
A 0,-1 B 0,0 C -1,-1 D
A
while
"++a"
a
a=0 b=-1
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#include
main( )
{ int x = 0x9;
printf("%c\
}
A J B I C K D H
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- 5 -
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B
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ASCII
C
#include
#define PT 3.5 ;
#define S(x) PT*x*x ;
main()
{ int a=1, b=2; printf("%4.1f\n" ,
S(a+b)); }
31.5
B 7.5
D 14.0
C
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A
C
C
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sin
#include
sin
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math.h
math.h
sin
A
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sin
C
C
C
A
B
C
D
#include
- 6 -
#define S(x) 4*(x)*x+1
main()
{ int k=5, j=2;
printf("%d\n", S(k+j) );
}
www.zeyucn.org
int a=3,s,t ;
s=f(a+1);
t=f((a+1));
printf("%d,%d\n",s,t);
}
A 143 B 197 C 33 D 28
A
A
D
64,64 B 10,10 C 64,10 D 10,64
S(k+j)=4*(k+j)*k+j+1=4*(5+2)*5+2+1=143
A
#define IsDIV(k,n) ( ( k%n==1) ?
1 : 0)
m
IsDIV(m,5) && IsDIV(m,7)
m
m
m
m
5
5
7
5
5
7
7
7
1
1
A
B
C
D
D
s=f(a+1)=a+1*a+1*a+1=10
t=f((a+1))=(a+1)*(a+1)*(a+1)=64
D
#include
#define N 5
#define M N+1
#define f(x) (x*M)
main()
{ int i1, i2;
i1 = f(2) ;
i2 = f(1+1) ;
printf("%d %d\n", i1, i2);
}
"( ( m%5==1) ? 1 : 0) && ( ( m%7==1) ?
1 : 0)"
m
5
7
0
1
1
D
#include
#define SUB(a) (a)-(a)
main()
{ int a=2,b=3,c=5,d;
d=SUB(a+b)*c;
printf("%d\n",d);
}
A 10 B -12 C 0 D -20
D
12 12 B 11 7 C 11 11 D 12 7
A
B
i1=f(2)=(2*M)=(2*N+1)=(2*5+1)=11
i2=f(1+1)=(1+1*M)=(1+1*N+1)=(1+1*5+1)=7
B
C
#define MAX
"#"
A
B
C
D
A
"d=SUB(a+b)*c;" "d=(a+b)-(a+b)*c;"
A
-20
#include
#define f(x) x*x*x
main()
{
D
#define N 100
C
N
N
100
100
100
N
A
B
C
- 7 -
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