发布时间 : 星期日 文章(完整版)全国计算机等级考试二级教程--C语言程序设计课后习题答案更新完毕开始阅读
{
int iLoop = 0; while(str[iLoop]) {
putchar(str[iLoop++]); }
putchar('\\n'); return str; } 10.20 #include #include
int fun(char *str) { int len; int iLoop1; int iLoop2; int result = 1;
len = strlen(str);
for(iLoop1 = 0, iLoop2 = len - 1; iLoop1 < iLoop2; iLoop1++, iLoop2--) {
if(str[iLoop1] != str[iLoop2]) {
result = 0; break; } }
return result; }
int main() {
char a[20] = \ char b[20] = \
printf(\ printf(\
return 0; } 10.21
char fun(char *str, int pos) { int len; int iLoop; char ch;
len = strlen(str); if(pos > len) {
return NULL; }
ch = str[pos];
for(iLoop = pos; iLoop < len - 1; iLoop++) {
str[iLoop] = str[iLoop + 1]; }
str[len-1] = '\\0'; return ch; }
第十一章 一. 选择题
11.1 D 11.2 B 11.3 A 11.4 C
二. 填空题
11.5 IJKLEFGHABCD 11.6 7 11.7 8
11.8 *(s+j) i+1 i 11.9 17
11.10 (*fun)() (*fun)(a+i*h)/h mypoly
三. 编程题 11.11 #include #include #define N 81
int main(int argc, char **argv) { char sig; int dig; int pos;
char str[N] = {'\\0'}; char outStr[N] = {'\\0'};
if(argc < 2) { sig = '-'; dig = 10; } else {
sig = argv[1][0]; dig = argv[1][1] - '0'; }
printf(\请输入一个字符串：\ gets(str);
if(sig == '-') {
pos = strlen(str) - dig; if(pos <= 0) { pos = 0; }
strcpy(outStr, str + pos); }
else if(sig == '+') {
strcpy(outStr, str); pos = strlen(outStr); if(pos > dig) {
pos = dig; }
outStr[pos] = '\\0'; }
printf(\处理后的字串为：\ printf(\
return 0; } 11.12 #include #include
void movebin(char *bin) { int len; int iLoop; len = strlen(bin);
for(iLoop = len; iLoop > 0; iLoop--) {
bin[iLoop] = bin[iLoop - 1]; } return; }
void fun(int n, char *bin) { int pos;
pos = strlen(bin); if(n == 0) { return; }
if(n == 1) {
movebin(bin); bin[0] = '1'; return; }
movebin(bin); bin[0] = (n%2) + '0'; n /= 2; fun(n, bin); return; }
int main() { int a = 4;
char bin[50] = {\
fun(a, bin); printf(\
return 0; } 11.13