华中科技大学实用标准C语言程序设计及指导应用习题问题详解

第二章

一.选择题

1.C 2.B D 3.A 4.A 5. D 6.C 7.D 8.C 9.A 10.D 11.B 12.D 13.C 14.D 15.A 16.B 17.A 18.B 100011 001111 二.判断题 1.错 2.错 3.错 4.错

三.填空题 1. B 66

2. n1=%d\\nn2=%d\\n 3. 0 四.计算 1

(1) x|y = 0x002f (2) x^y = 0x0026 (3) x&y = 0x0009; (4) ~x+~y = 0xffc6 (5) x<<=3 0x0068 (6) y>>=4 0x0002 2 (1) 6 (2) 50 (3) 1 (4) –16 (5) 1 (6) 20 3 (1) 0 (2) 1 (3) 1 (4) 4 (5) 8 (6) 1 4

(1) 12 (2) 0 (3) 1 (4) 27

(5) 1 (6) 6 (7) 24 (8) 27 (9) –29 5 (1) 0 (2) 1 (3) 1 (4) –3 (5) 2

五.程序分析题 程序1

b=20 a=3600

程序2

一.填空题 1.s=6 2.96

3.(1) scanf(\

(2) c-32 更好的答案：c-('a'-'A') 2.1 main() {

int a,b;

printf(\scanf(\

printf(\} 2.2

int max(int x,int y); main() {

int a,b,c,max;

printf(\scanf(\max=a>b?a:b;

max=c>max?c:max;

printf(\} 2.3

第三章

main() {

int i=0,sum=0; while(i<=100) {

sum+=i; i++; }

printf(\} 2.4 main() {

int i;

int a=10,b=-3; int c;

printf(\ for(i=2;i<10;i++) {

c=3*b+a;

printf(\ a=b; b=c; }

printf(\} 2.5 main() {

int i; while(1) {

printf(\ scanf(\ if(i==0) break; if(i%2==0)

printf(\ else

printf(\ } } 2.6

#include

main() {

int i;

int a=8,b=1; int sum=0;

for(i=0;i<10;i++) {

b+=3; sum += a; a+=b;

printf(\ b:?\\n\ }

printf(\} 2.7

#include main() {

float x,y;

printf(\ scanf(\ if(x<1.0) y=x; else if(x<10) y=2*x-1; else

y=3*x-11;

printf(\} 2.8

#include main() {

long a,i,b,a1; while(1) {

printf(\ scanf(\ printf(\ if(a<=0||a>=100000) break; i=0; a1=0;

while(a!=0) {

b=a;

printf(\ a/=10; i++;

a1=a1*10+b; }

printf(\ i:%ld a1:%ld\\n\ } } 2.9

#include #include #include

main() {

int a,b,i,k=0; randomize();

a=random(1001);/*create a random data(0-1000)*/ for(i=0;i<20;i++) {

printf(\ scanf(\ if(a>b) {

k++;

printf(\

}

else if(a

k++;

printf(\ } else {

printf(\ printf(\ break; } }

if(k==20)