]]>
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#include <stdio.h>
void to_binary(unsigned long n);
int main(void)
{
unsigned long number;
printf("Enter an integer (q to quit): \n");
while(scanf("%lu", &number) == 1)
{
printf("Binary equivalent: ");
to_binary(number);
putchar('\n');
printf("Enter an integer (q to quit): \n");
}
printf("Done!\n");
return 0;
}
void to_binary(unsigned long n)
{
int r;
r = n % 2;
if(n >= 2)
to_binary(n / 2);
putchar('0' + r);
return;
}
澶嶄範棰?/span>void to_binary(unsigned long n);
int main(void)
{
unsigned long number;
printf("Enter an integer (q to quit): \n");
while(scanf("%lu", &number) == 1)
{
printf("Binary equivalent: ");
to_binary(number);
putchar('\n');
printf("Enter an integer (q to quit): \n");
}
printf("Done!\n");
return 0;
}
void to_binary(unsigned long n)
{
int r;
r = n % 2;
if(n >= 2)
to_binary(n / 2);
putchar('0' + r);
return;
}
1銆佸疄闄呭弬鏁板拰褰㈠紡鍙傞噺鏈変綍涓嶅悓錛?br />絳旓細
褰㈠紡鍙傞噺錛堜篃琚О涓哄艦寮忓弬鏁幫級鏄竴涓彉閲忥紝瀹冨湪琚皟鍑芥暟涓繘琛屽畾涔夈傚疄闄呭弬鏁版槸鍦ㄥ嚱鏁拌皟鐢ㄤ腑鍑虹幇鐨勫鹼紝瀹冭璧嬪肩粰褰㈠紡鍙傞噺銆傚彲浠ユ妸瀹為檯鍙傛暟璁や負鏄湪鍑芥暟琚皟鐢ㄦ椂鐢ㄦ潵鍒濆鍖栧艦寮忓弬閲忕殑鍊箋?br />2銆佸啓鍑轟笅闈㈡墍鎻忚堪鐨勫悇涓嚱鏁扮殑ANSI鍑芥暟澶淬傛敞鎰忥細鍙啓鍑哄嚱鏁板ご鍗沖彲錛屼笉闇瑕佸疄鐜般?br />a.donut()鎺ュ彈涓涓猧nt綾誨瀷鐨勫弬鏁幫紝鐒跺悗杈撳嚭鑻ュ共涓?錛岃緭鍑?鐨勬暟鐩瓑浜庡弬鏁扮殑鍊箋?br />b.gear()鎺ュ彈涓や釜int綾誨瀷鐨勫弬鏁板茍榪斿洖int綾誨瀷鐨勫箋?br />c.stuff_it()鐨勫弬鏁板寘鎷竴涓猟ouble綾誨瀷鐨勫間互鍙婁竴涓猟ouble綾誨瀷鍙橀噺鐨勫湴鍧錛屽姛鑳芥槸鎶婄涓涓暟鍊煎瓨鏀懼埌鎸囧畾鐨勫湴鍧涓?br />絳旓細
a.void donut(int n)
b.int gear(int n, int m)
c.void stuff_it(double n, double * d)
3銆佸彧鍐欏嚭涓嬪垪鍑芥暟鐨凙NSI C鍑芥暟澶達紝涓嶉渶瑕佸疄鐜板嚱鏁般?br />a.n_to_char()鎺ュ彈涓涓猧nt綾誨瀷鐨勫弬鏁板茍榪斿洖涓涓猚har綾誨瀷鐨勫箋?br />b.digits()鎺ュ彈鐨勫弬鏁版槸涓涓猟ouble綾誨瀷鐨勬暟鍊煎拰涓涓猧nt綾誨瀷鐨勬暟鍊鹼紝榪斿洖鍊肩被鍨嬫槸int銆?br />c.random()涓嶆帴鍙楀弬鏁幫紝榪斿洖int綾誨瀷鐨勬暟鍊箋?br />絳旓細b.int gear(int n, int m)
c.void stuff_it(double n, double * d)
a.char n_to_char(int n)
b.int digits(double n, int m)
c.int random(void)
4銆佽璁′竴涓疄鐜頒袱鏁存暟鐩稿姞騫跺皢緇撴灉榪斿洖鐨勫嚱鏁般?br />絳旓細b.int digits(double n, int m)
c.int random(void)
int plus(int n, int m)
{
return n + m;
}
5銆佸亣濡傞棶棰?涓殑鍑芥暟瀹炵幇涓や釜double綾誨瀷鐨勬暟鍊肩浉鍔狅紝閭ｄ箞搴旇濡備綍淇敼鍘熷嚱鏁幫紵{
return n + m;
}
絳旓細
double plus(double n, double m)
{
return n + m;
}
6銆佽璁″嚱鏁癮lter()錛屽叾杈撳叆鍙傛暟鏄袱涓猧nt綾誨瀷鐨勫彉閲弜鍜寉錛屽姛鑳芥槸鍒嗗埆灝嗚繖涓や釜鍙橀噺鐨勬暟鍊兼敼涓哄畠浠殑鍜屼互鍙婂畠浠殑宸?br />絳旓細錛?span style="background-color: yellow;">娉ㄦ剰錛氫笅闈㈣繖縐嶅啓娉曟槸閿欒鐨勶紒錛侊紒錛?/span>{
return n + m;
}
void alter(int x, int y)
{
x = x + y;
y = x - y;
}
姝ｇ‘鐨勫啓娉曞涓嬶細{
x = x + y;
y = x - y;
}
void alter(int * u, int * v)
{
int temp;
temp = *u;
*u = *u + *v;
*v = temp - *v;
}
7銆佸垽鏂笅闈㈢殑鍑芥暟瀹氫箟鏄惁姝ｇ‘銆?br />{
int temp;
temp = *u;
*u = *u + *v;
*v = temp - *v;
}
void salami(num)
{
int num, count;
for(count = 1; count <= num; num++)
printf("O salami mio!\n");
}
絳旓細{
int num, count;
for(count = 1; count <= num; num++)
printf("O salami mio!\n");
}
鏈夐敊璇俷um搴旇鍦╯alami()鐨勫弬鏁板垪琛ㄤ腑鑰屼笉鏄湪鑺辨嫭鍙蜂箣鍚庡０鏄庯紝鑰屼笖搴旇鏄痗ount++鑰屼笉鏄痭um++銆?br />8銆佺紪鍐欎竴涓嚱鏁幫紝浣垮叾榪斿洖3涓暣鏁板弬鏁頒腑鐨勬渶澶у箋?br />絳旓細
int max(int x, int y, int z)
{
int max;
if(x > y)
if(x > z)
max = x;
else
max = z;
else
if(y > z)
max = y;
else
max = z;
return max;
}
or 錛?span style="background-color: yellow;">鏇寸畝媧佷竴鐐癸級{
int max;
if(x > y)
if(x > z)
max = x;
else
max = z;
else
if(y > z)
max = y;
else
max = z;
return max;
}
int max(int x, int y, int z)
{
int max = x;
if(y > max)
max = y;
if(z > max)
max = z;
return max;
}
9銆佺粰瀹氫笅闈㈢殑杈撳嚭錛?br />Please choose one of the following:{
int max = x;
if(y > max)
max = y;
if(z > max)
max = z;
return max;
}
1)copy files 2)move files
3)remove files 4)quit
Enter the number of your choice:
a.鐢ㄤ竴涓嚱鏁板疄鐜拌彍鍗曠殑鏄劇ず錛屼笖璇ヨ彍鍗曟湁4涓敤鏁板瓧緙栧彿鐨勯夐」騫惰姹備綘閫夋嫨鍏朵腑涔嬩竴錛堣緭鍑哄簲璇ュ棰樹腑鎵紺猴級銆?br />b.緙栧啓涓涓嚱鏁幫紝璇ュ嚱鏁版帴鍙椾袱涓猧nt綾誨瀷鐨勫弬鏁幫細涓涓笂鐣屽拰涓涓笅鐣屻傚湪鍑芥暟涓紝棣栧厛浠庤緭鍏ョ粓绔鍙栦竴涓暣鏁幫紝濡傛灉璇ユ暣鏁頒笉鍦ㄤ笂涓嬬晫瑙勫畾鐨勮寖鍥村唴錛屽垯鍑芥暟閲嶆柊鏄劇ず鑿滃崟錛堜嬌鐢ㄦ湰棰樼洰a閮ㄥ垎涓殑鍑芥暟錛変互鍐嶆鎻愰啋鐢ㄦ埛杈撳叆鏂板箋傚鏋滆緭鍏ユ暟鍊煎湪瑙勫畾鐨勮寖鍥村唴錛岄偅涔堝嚱鏁板簲璇ュ皢鏁板艱繑鍥炵粰璋冪敤鍑芥暟銆?br />c.浣跨敤鏈鐩產鍜宐閮ㄥ垎涓殑鍑芥暟緙栧啓涓涓渶灝忕殑紼嬪簭銆傛渶灝忕殑鎰忔濇槸璇ョ▼搴忎笉闇瑕佸疄鐜拌彍鍗曚腑鎵鎻忚堪鐨勫姛鑳斤紱瀹冨彧闇瑕佹樉紺鴻繖浜涢夐」騫惰兘鑾峰彇姝ｇ‘鐨勫搷搴斿嵆鍙?br />絳旓細錛堝弬鑰冭鍚庣瓟妗堬級
#include <stdio.h>
void menu(void);
int get_input(int, int);
int main(void)
{
int res;
menu();
while((res = get_input(1, 4)) != 4)
printf("I like choice %d.\n", res);
printf("Bye!\n");
return 0;
}
void menu(void)
{
printf("Please choose one of the following: \n");
printf("1)copy files 2)move files\n");
printf("3)remove files 4)quit\n");
printf("Enter the number of your choice: \n");
}
int get_input(int min, int max)
{
int number;
scanf("%d", &number);
while(number < min || number > max)
{
printf("%d is not a valid choice; try again.\n", number);
menu();
scanf("%d", &number);
}
return number;
}
緙栫▼緇冧範void menu(void);
int get_input(int, int);
int main(void)
{
int res;
menu();
while((res = get_input(1, 4)) != 4)
printf("I like choice %d.\n", res);
printf("Bye!\n");
return 0;
}
void menu(void)
{
printf("Please choose one of the following: \n");
printf("1)copy files 2)move files\n");
printf("3)remove files 4)quit\n");
printf("Enter the number of your choice: \n");
}
int get_input(int min, int max)
{
int number;
scanf("%d", &number);
while(number < min || number > max)
{
printf("%d is not a valid choice; try again.\n", number);
menu();
scanf("%d", &number);
}
return number;
}
1銆?br />
#include <stdio.h>
double min(double, double);
int main(void)
{
printf("One of the smaller of the two numbers is %.2f", min(23.34, 12.11));
return 0;
}
double min(double x, double y)
{
return x < y ? x : y;
}
2銆?br />double min(double, double);
int main(void)
{
printf("One of the smaller of the two numbers is %.2f", min(23.34, 12.11));
return 0;
}
double min(double x, double y)
{
return x < y ? x : y;
}
#include <stdio.h>
void chline(char ch, int i, int j);
int main(void)
{
chline('$', 3, 5);
return 0;
}
void chline(char ch, int i, int j)
{
int index;
for(index = 1; index < i; index++)
putchar(' ');
for(index = 1; index <= j - i + 1; index++)
putchar(ch);
}
3銆?br />void chline(char ch, int i, int j);
int main(void)
{
chline('$', 3, 5);
return 0;
}
void chline(char ch, int i, int j)
{
int index;
for(index = 1; index < i; index++)
putchar(' ');
for(index = 1; index <= j - i + 1; index++)
putchar(ch);
}
#include <stdio.h>
void chline(char ch, int col, int row);
int main(void)
{
chline('$', 3, 5);
return 0;
}
void chline(char ch, int col, int row)
{
int i, j;
for(i = 0; i < row; i++)
{
for(j = 0; j < col; j++)
putchar(ch);
putchar('\n');
}
}
4銆?br />void chline(char ch, int col, int row);
int main(void)
{
chline('$', 3, 5);
return 0;
}
void chline(char ch, int col, int row)
{
int i, j;
for(i = 0; i < row; i++)
{
for(j = 0; j < col; j++)
putchar(ch);
putchar('\n');
}
}
#include <stdio.h>
double computer(double a, double b);
int main(void)
{
printf("%.2f鍜?.2f鐨勮皭鍧囧兼槸錛?.3f\n", 0.3, 0.5, computer(0.3, 0.5));
return 0;
}
double computer(double a, double b)
{
double result;
result = 1 / ((1/a + 1/b) / 2);
return result;
}
5銆?br />double computer(double a, double b);
int main(void)
{
printf("%.2f鍜?.2f鐨勮皭鍧囧兼槸錛?.3f\n", 0.3, 0.5, computer(0.3, 0.5));
return 0;
}
double computer(double a, double b)
{
double result;
result = 1 / ((1/a + 1/b) / 2);
return result;
}
#include <stdio.h>
void larger_of(double *, double *);
int main(void)
{
double x = 23.3;
double y = 34.4;
printf("Originally x = %.1f; y = %.1f\n", x, y);
larger_of(&x, &y);
printf("Now x = %.1f; y = %.1f\n", x, y);
return 0;
}
void larger_of(double * u, double * v)
{
double temp;
temp = *u > *v ? *u : *v;
*u = temp;
*v = temp;
}
6銆侊紙絎竴嬈＄爜鐨勭▼搴忚鍙栧埌鎹㈣絎︾殑鏃跺欎篃浼氭墦鍗板嚭鏉ワ紝浼氱粰浜虹湅涓嶆槑鐧界殑鎰熻錛岀儲鎬ф寜[Enter]閿殑鏃跺欏氨閫鍑哄驚鐜紝涓嶈璇誨埌EOF錛?br />void larger_of(double *, double *);
int main(void)
{
double x = 23.3;
double y = 34.4;
printf("Originally x = %.1f; y = %.1f\n", x, y);
larger_of(&x, &y);
printf("Now x = %.1f; y = %.1f\n", x, y);
return 0;
}
void larger_of(double * u, double * v)
{
double temp;
temp = *u > *v ? *u : *v;
*u = temp;
*v = temp;
}
#include <stdio.h>
#include <ctype.h>
void printchar(char ch);
int main(void)
{
char ch;
printf("璇瘋緭鍏ヨ鍒嗘瀽鐨勪笢瑗匡細\n");
while((ch = getchar()) != EOF)
{
printchar(ch);
}
return 0;
}
void printchar(char ch)
{
if(isalpha(ch))
{
printf("%c %d\n", ch, toupper(ch) % 'A' + 1);
}
}
淇敼涔嬪悗錛岀▼搴忓涓嬶細#include <ctype.h>
void printchar(char ch);
int main(void)
{
char ch;
printf("璇瘋緭鍏ヨ鍒嗘瀽鐨勪笢瑗匡細\n");
while((ch = getchar()) != EOF)
{
printchar(ch);
}
return 0;
}
void printchar(char ch)
{
if(isalpha(ch))
{
printf("%c %d\n", ch, toupper(ch) % 'A' + 1);
}
}
#include <stdio.h>
#include <ctype.h>
int show_c_location(char ch);
int main(void)
{
char ch;
printf("Please enter some characters: \n");
while((ch = getchar()) != '\n')
printf("%c-%d ", ch, show_c_location(ch));
return 0;
}
int show_c_location(char ch)
{
int result;
if(isalpha(ch))
result = toupper(ch) - 'A' + 1;
else
result = -1;
return result;
}
7銆?br />#include <ctype.h>
int show_c_location(char ch);
int main(void)
{
char ch;
printf("Please enter some characters: \n");
while((ch = getchar()) != '\n')
printf("%c-%d ", ch, show_c_location(ch));
return 0;
}
int show_c_location(char ch)
{
int result;
if(isalpha(ch))
result = toupper(ch) - 'A' + 1;
else
result = -1;
return result;
}
#include <stdio.h>
double power(double n, int p);
int main(void)
{
double x, xpow;
int exp;
printf("Enter a number and the positive integer power");
printf(" to which\nthe number will be raised. Enter q");
printf(" to quit.\n");
while(scanf("%lf%d", &x, &exp) == 2)
{
xpow = power(x, exp);
printf("%.3g to power %d is %.5g\n", x, exp, xpow);
printf("Enter next pair of numbers or q to quit.\n");
}
printf("Hope you enjoyed this power trip -- bye!\n");
return 0;
}
double power(double n, int p)
{
int i;
double result = 1;
if(n != 0)
{
if(p > 0)
{
for(i = 1; i <= p; i++)
result *= n;
}
else if(p < 0)
{
for(i = 1; i <= -p; i++)
result *= (1 / n);
}
else
result = 1;
}
else
{
if(p == 0)
result = 1;// 0鐨?嬈℃柟鏄竴涓湁浜夎鐨勬暟錛屾湰棰樿涓轟細寰楀埌1
else
result = 0;
}
return result;
}
8銆?br />double power(double n, int p);
int main(void)
{
double x, xpow;
int exp;
printf("Enter a number and the positive integer power");
printf(" to which\nthe number will be raised. Enter q");
printf(" to quit.\n");
while(scanf("%lf%d", &x, &exp) == 2)
{
xpow = power(x, exp);
printf("%.3g to power %d is %.5g\n", x, exp, xpow);
printf("Enter next pair of numbers or q to quit.\n");
}
printf("Hope you enjoyed this power trip -- bye!\n");
return 0;
}
double power(double n, int p)
{
int i;
double result = 1;
if(n != 0)
{
if(p > 0)
{
for(i = 1; i <= p; i++)
result *= n;
}
else if(p < 0)
{
for(i = 1; i <= -p; i++)
result *= (1 / n);
}
else
result = 1;
}
else
{
if(p == 0)
result = 1;// 0鐨?嬈℃柟鏄竴涓湁浜夎鐨勬暟錛屾湰棰樿涓轟細寰楀埌1
else
result = 0;
}
return result;
}
#include <stdio.h>
double power(double n, int p);
int main(void)
{
double x, xpow;
int exp;
printf("Enter a number and the positive integer power");
printf(" to which\nthe number will be raised. Enter q");
printf(" to quit.\n");
while(scanf("%lf%d", &x, &exp) == 2)
{
xpow = power(x, exp);
printf("%.3g to power %d is %.5g\n", x, exp, xpow);
printf("Enter next pair of numbers or q to quit.\n");
}
printf("Hope you enjoyed this power trip -- bye!\n");
return 0;
}
double power(double n, int p)
{
double result = 1;
if(n != 0)
{
if(p > 0)
result = n * power(n, p-1);
else if(p < 0)
result = (1/n) * power(n, p+1);
else
result = 1;
}
else
{
if(p == 0)
result = 1;// 0鐨?嬈℃柟鏄竴涓湁浜夎鐨勬暟錛屾湰棰樿涓轟細寰楀埌1
else
result = 0;
}
return result;
}
9銆?br />double power(double n, int p);
int main(void)
{
double x, xpow;
int exp;
printf("Enter a number and the positive integer power");
printf(" to which\nthe number will be raised. Enter q");
printf(" to quit.\n");
while(scanf("%lf%d", &x, &exp) == 2)
{
xpow = power(x, exp);
printf("%.3g to power %d is %.5g\n", x, exp, xpow);
printf("Enter next pair of numbers or q to quit.\n");
}
printf("Hope you enjoyed this power trip -- bye!\n");
return 0;
}
double power(double n, int p)
{
double result = 1;
if(n != 0)
{
if(p > 0)
result = n * power(n, p-1);
else if(p < 0)
result = (1/n) * power(n, p+1);
else
result = 1;
}
else
{
if(p == 0)
result = 1;// 0鐨?嬈℃柟鏄竴涓湁浜夎鐨勬暟錛屾湰棰樿涓轟細寰楀埌1
else
result = 0;
}
return result;
}
#include <stdio.h>
void to_base_n(unsigned long n, int range);
int main(void)
{
unsigned long number;
int range;
printf("璇瘋緭鍏ヨ杞崲鐨勬棤絎﹀彿鏁存暟鍜屾墍瑙勫畾鐨勮繘鍒舵暟錛?nbsp;\n");
while(scanf("%lu %d", &number, &range) == 2)
{
if(range >= 2 && range <= 10)
{
printf("鏃犵鍙鋒暣鏁?lu杞崲鎴?d榪涘埗鏁頒負錛?nbsp;", number, range);
to_base_n(number, range);
putchar('\n');
printf("璇瘋緭鍏ヨ杞崲鐨勬棤絎﹀彿鏁存暟鍜屾墍瑙勫畾鐨勮繘鍒舵暟錛?nbsp;\n");
}
else
printf("鎵瑙勫畾鐨勮繘鍒舵暟鐨勮寖鍥存槸2~10錛岃杈撳叆姝ｇ‘鐨勬暟瀛梊n");
}
printf("Done!\n");
return 0;
}
void to_base_n(unsigned long n, int range)
{
int r;
r = n % range;
if(n >= range)
to_base_n(n / range, range);
putchar('0' + r);
return;
}
10銆侊紙棰樻剰鐞嗚В涓嶆竻妤氾紝鍊熼壌CSDN——vs9841鍘熶綔鑰呯殑鍋氭硶錛岃剳瀛愬お絎紝瀹炲湪鎯充笉鍑烘潵錛?br />void to_base_n(unsigned long n, int range);
int main(void)
{
unsigned long number;
int range;
printf("璇瘋緭鍏ヨ杞崲鐨勬棤絎﹀彿鏁存暟鍜屾墍瑙勫畾鐨勮繘鍒舵暟錛?nbsp;\n");
while(scanf("%lu %d", &number, &range) == 2)
{
if(range >= 2 && range <= 10)
{
printf("鏃犵鍙鋒暣鏁?lu杞崲鎴?d榪涘埗鏁頒負錛?nbsp;", number, range);
to_base_n(number, range);
putchar('\n');
printf("璇瘋緭鍏ヨ杞崲鐨勬棤絎﹀彿鏁存暟鍜屾墍瑙勫畾鐨勮繘鍒舵暟錛?nbsp;\n");
}
else
printf("鎵瑙勫畾鐨勮繘鍒舵暟鐨勮寖鍥存槸2~10錛岃杈撳叆姝ｇ‘鐨勬暟瀛梊n");
}
printf("Done!\n");
return 0;
}
void to_base_n(unsigned long n, int range)
{
int r;
r = n % range;
if(n >= range)
to_base_n(n / range, range);
putchar('0' + r);
return;
}
#include <stdio.h>
int Fibonacci(int n);
int main(void)
{
int n = 9;
printf("褰搉涓?d鏃訛紝鏂愭嘗綰沖鏁板間負%d", n, Fibonacci(9));
return 0;
}
int Fibonacci(int n)
{
int a, b, i;
a = 0;
b = 1;
int sum;
if(n == 0)
return 0;
if(n == 1)
return 1;
else
{
for(i = 2; i <= n; i++)
{
sum = a + b;
a = b;
b = sum;
}
return sum;
}
}
鎬葷粨錛氭諱綋鏉ヨ緙栫▼緇冧範鐩稿浠ュ線鏉ヨ瑕佺畝鍗曚簡錛屼絾絎?0棰樻病鏄庣櫧浠涔堟剰鎬濓紝鎵浠ュ彧鑳藉熼壌鍒漢鐨勪簡錛岀湡鏄ぉ涓嬫枃绔犱竴澶ф妱錛?img src ="http://www.tkk7.com/BeautifulMan/aggbug/428322.html" width = "1" height = "1" />int Fibonacci(int n);
int main(void)
{
int n = 9;
printf("褰搉涓?d鏃訛紝鏂愭嘗綰沖鏁板間負%d", n, Fibonacci(9));
return 0;
}
int Fibonacci(int n)
{
int a, b, i;
a = 0;
b = 1;
int sum;
if(n == 0)
return 0;
if(n == 1)
return 1;
else
{
for(i = 2; i <= n; i++)
{
sum = a + b;
a = b;
b = sum;
}
return sum;
}
}
]]>
1銆乸utchar(getchar())鏄竴涓湁鏁堢殑琛ㄨ揪寮忥紝瀹冨疄鐜頒粈涔堝姛鑳斤紵getchar(putchar())涔熸湁鏁堝悧錛?br />絳旓細
璇彞putchar(getchar())浣跨▼搴忚鍙栦笅涓涓緭鍏ュ瓧絎﹀茍鎵撳嵃瀹冿紝getchar()鐨勮繑鍥炲間綔涓簆utchar()鐨勫弬鏁般俫etchar(putchar())鍒欎笉鏄悎娉曠殑錛屽洜涓篻etchar()涓嶉渶瑕佸弬鏁拌宲utchar()闇瑕佷竴涓弬鏁般?br />2銆佷笅闈㈢殑姣忎釜璇彞瀹炵幇浠涔堝姛鑳斤紵
a.putchar('H');
b.putchar('\007');
c.putchar('\n');
d.putchar('\b');
絳旓細b.putchar('\007');
c.putchar('\n');
d.putchar('\b');
a. 鏄劇ず瀛楃H
b.濡傛灉緋葷粺浣跨敤ASCII瀛楃緙栫爜錛屽垯鍙戝嚭涓澹拌鎶?br />c.鎶婂厜鏍囩Щ鍔ㄥ埌涓嬩竴琛岀殑寮濮?br />d.閫鍚庝竴鏍?br />3銆佸亣璁炬偍鏈変竴涓▼搴廲ount錛岃紼嬪簭瀵硅緭鍏ョ殑瀛楃榪涜緇熻銆傜敤count紼嬪簭璁捐涓涓懡浠よ鍛戒護錛屽鏂囦歡essay涓殑瀛楃榪涜璁℃暟騫跺皢緇撴灉淇濆瓨鍦ㄥ悕涓篹ssayct鐨勬枃浠朵腑銆?br />絳旓細
count < essay > essayct
4銆佺粰瀹氶棶棰?涓殑紼嬪簭鍜屾枃浠訛紝涓嬮潰鍝釜鍛戒護鏄紜殑錛?br />絳旓細
a.essayct <essay
b.count essay
c.essay >count
絳旓細
c鏄紜殑銆?br />5銆丒OF鏄粈涔堬紵
絳旓細
瀹冩槸鐢眊etchar()鍜宻canf()榪斿洖鐨勪俊鍙鳳紙涓涓壒瀹氱殑鍊鹼級錛岀敤鏉ヨ〃鏄庡凡緇忓埌杈句簡鏂囦歡鐨勭粨灝俱?br />6銆佸緇欏嚭鐨勮緭鍏ワ紝涓嬮潰姣忎釜紼嬪簭孌電殑杈撳嚭鏄粈涔堬紙鍋囧畾ch鏄痠nt綾誨瀷鐨勶紝騫朵笖杈撳叆鏄紦鍐茬殑錛夛紵
a. 杈撳叆濡備笅鎵紺猴細
If you quit, I will.[enter]
紼嬪簭孌靛涓嬫墍紺猴細
while ((ch = getchar()) != 'i')
putchar(ch);
b. 杈撳叆濡備笅鎵紺猴細
Harhar[enter]
紼嬪簭孌靛涓嬫墍紺猴細
while ((ch = getchar()) != '\n')
{
putchar(ch++);
putchar(++ch);
}
絳旓細
a.If you qu
b.HJacrthjacrt
7銆丆濡備綍澶勭悊鍏鋒湁涓嶅悓鏂囦歡鍜屾崲琛岀害瀹氱殑涓嶅悓璁＄畻鏈虹郴緇燂紵
絳旓細
C鐨勬爣鍑咺/O搴撴妸涓嶅悓鐨勬枃浠跺艦寮忔槧灝勪負緇熶竴鐨勬祦錛岃繖鏍峰氨鍙互鎸夌浉鍚岀殑鏂瑰紡瀵瑰畠浠繘琛屽鐞嗐?br />8銆佸湪緙撳啿緋葷粺涓妸鏁板艱緭鍏ヤ笌瀛楃杈撳叆鐩告販鍚堟椂錛屾偍鎵闈復鐨勬綔鍦ㄩ棶棰樻槸浠涔堬紵
絳旓細
鏁板瓧杈撳叆璺寵繃絀烘牸鍜屾崲琛岀錛屼絾鏄瓧絎﹁緭鍏ュ茍涓嶆槸榪欐牱銆傚亣璁炬偍緙栧啓浜嗚繖鏍風殑浠ｇ爜錛?br />
int score;
char grade;
printf("Enter the score.\n");
scanf("%d", &score);
printf("Enter the letter grade.\n");
grade = getchar();
鍋囪鎮ㄨ緭鍏ュ垎鏁?8錛岀劧鍚庢寜涓嬪洖杞﹂敭鏉ユ妸鍒嗘暟鍙戦佺粰紼嬪簭錛屾偍鍚屾椂涔熷彂閫佷簡涓涓崲琛岀錛屽畠浼氭垚涓轟笅涓涓緭鍏ュ瓧絎﹁璇誨彇鍒癵rade涓綔涓虹瓑綰х殑鍊箋傚鏋滃湪瀛楃杈撳叆涔嬪墠榪涜浜嗘暟瀛楄緭鍏ワ紝灝卞簲璇ユ坊鍔犱唬鐮佷互鍦ㄨ幏鍙栧瓧絎﹁緭鍏ヤ箣鍓嶅墧闄ゆ崲琛屽瓧絎︺?br />緙栫▼緇冧範char grade;
printf("Enter the score.\n");
scanf("%d", &score);
printf("Enter the letter grade.\n");
grade = getchar();
1銆?br />
#include <stdio.h>
int main(void)
{
int ch;
int count = 0;
while((ch = getchar()) != EOF) // 鍖呮嫭鎹㈣絎?/span>
count++;
printf("The number of characters is %d\n", count);
return 0;
}
2銆侊紙瑙夊緱榪欓瓚呴毦鐨勶紒錛侊紒鐪嬩簡涓浜涗粬浜哄啓鐨勪緥瀛愶紝綆鐩磋儭璇村叓閬擄紒錛侊紒涓嶈繃榪樻槸瀹岀編瑙ｅ喅浜嗭級int main(void)
{
int ch;
int count = 0;
while((ch = getchar()) != EOF) // 鍖呮嫭鎹㈣絎?/span>
count++;
printf("The number of characters is %d\n", count);
return 0;
}
#include <stdio.h>
int main(void)
{
int ch;
int i = 0;
while((ch = getchar()) != EOF)
{
if(ch >= 32) // 鍙墦鍗板瓧絎?/span>
{
putchar(ch);
printf("/%d ", ch);
i++;
}
else if(ch == '\n') // 鎵撳嵃鎹㈣絎?/span>
{
printf("\\n");
printf("/%d ", ch);
putchar(ch); // 娓呴櫎杈撳叆緙撳啿鍖洪噷闈㈢殑鎹㈣絎?/span>
i = 0; // i緗負0閲嶆柊寮濮嬭鏁幫紝鍥犱負棰樼洰瑕佹眰姣忔閬囧埌涓涓崲琛岀鏃跺氨瑕佸紑濮嬫墦鍗頒竴涓柊琛?/span>
}
else if(ch == '\t') // 鎵撳嵃鍒惰〃絎?/span>
{
printf("\\t");
printf("/%d ", ch);
i++;
}
else // 鎵撳嵃鎺у埗瀛楃
{
putchar('^');
putchar(ch + 64);
printf("/%d ", ch);
}
if(i == 10)
{
putchar('\n');
i = 0;
}
}
return 0;
}
榪愯緇撴灉濡備笅錛?br />int main(void)
{
int ch;
int i = 0;
while((ch = getchar()) != EOF)
{
if(ch >= 32) // 鍙墦鍗板瓧絎?/span>
{
putchar(ch);
printf("/%d ", ch);
i++;
}
else if(ch == '\n') // 鎵撳嵃鎹㈣絎?/span>
{
printf("\\n");
printf("/%d ", ch);
putchar(ch); // 娓呴櫎杈撳叆緙撳啿鍖洪噷闈㈢殑鎹㈣絎?/span>
i = 0; // i緗負0閲嶆柊寮濮嬭鏁幫紝鍥犱負棰樼洰瑕佹眰姣忔閬囧埌涓涓崲琛岀鏃跺氨瑕佸紑濮嬫墦鍗頒竴涓柊琛?/span>
}
else if(ch == '\t') // 鎵撳嵃鍒惰〃絎?/span>
{
printf("\\t");
printf("/%d ", ch);
i++;
}
else // 鎵撳嵃鎺у埗瀛楃
{
putchar('^');
putchar(ch + 64);
printf("/%d ", ch);
}
if(i == 10)
{
putchar('\n');
i = 0;
}
}
return 0;
}
I love you!
I/73 /32 l/108 o/111 v/118 e/101 /32 y/121 o/111 u/117錛堟瘡琛屾墦鍗?0涓鹼級
!/33 \n/10錛堟瘡嬈￠亣鍒頒竴涓崲琛岀鏃跺氨寮濮嬩竴涓柊琛岋級
My hello world^A
M/77 y/121 /32 h/104 e/101 l/108 l/108 o/111 /32 w/119錛堟瘡琛屾墦鍗?0涓鹼級
o/111 r/114 l/108 d/100 ^A/1 \n/10錛堟瘡嬈￠亣鍒頒竴涓崲琛岀鏃跺氨寮濮嬩竴涓柊琛岋級
^Z
3銆?br />I/73 /32 l/108 o/111 v/118 e/101 /32 y/121 o/111 u/117錛堟瘡琛屾墦鍗?0涓鹼級
!/33 \n/10錛堟瘡嬈￠亣鍒頒竴涓崲琛岀鏃跺氨寮濮嬩竴涓柊琛岋級
My hello world^A
M/77 y/121 /32 h/104 e/101 l/108 l/108 o/111 /32 w/119錛堟瘡琛屾墦鍗?0涓鹼級
o/111 r/114 l/108 d/100 ^A/1 \n/10錛堟瘡嬈￠亣鍒頒竴涓崲琛岀鏃跺氨寮濮嬩竴涓柊琛岋級
^Z
#include <stdio.h>
#include <ctype.h>
int main(void)
{
int ch;
int low_count = 0, up_count = 0;
while((ch = getchar()) != EOF)
{
if(islower(ch))
low_count++;
if(isupper(ch))
up_count++;
}
printf("A number of capital letters: %d\n", up_count);
printf("A number of lower case letters: %d\n", low_count);
return 0;
}
4銆?br />#include <ctype.h>
int main(void)
{
int ch;
int low_count = 0, up_count = 0;
while((ch = getchar()) != EOF)
{
if(islower(ch))
low_count++;
if(isupper(ch))
up_count++;
}
printf("A number of capital letters: %d\n", up_count);
printf("A number of lower case letters: %d\n", low_count);
return 0;
}
#include <stdio.h>
#include <ctype.h>
#include <stdbool.h>
int main(void)
{
char ch;
long chars = 0L; // 緇熻鍗曡瘝鐨勫瓧絎︽暟
int words= 0; // 鍗曡瘝鏁?/span>
bool inword = false; // 濡傛灉ch鍦ㄤ竴涓崟璇嶄腑錛屽垯inword涓簍rue
printf("Enter text to be analyzed: \n");
while((ch = getchar()) != EOF)
{
if(!isspace(ch) && !ispunct(ch))
chars++;
if(!isspace(ch) && !inword)
{
inword = true;
words++;
}
if(isspace(ch) && inword)
inword = false;
}
printf("The average number of words per word: %ld\n", chars / words);
return 0;
}
5銆侊紙浜屽垎鎼滅儲綆楁硶絎竴嬈＄瑙侊紝鎼炰簡澶у崐澶╀簡錛屽熼壌鐨勬槸CSDN-----vs9841浣滆呯殑鍋氭硶錛屼笉榪囩◢寰姞浜嗕笅宸ワ級#include <ctype.h>
#include <stdbool.h>
int main(void)
{
char ch;
long chars = 0L; // 緇熻鍗曡瘝鐨勫瓧絎︽暟
int words= 0; // 鍗曡瘝鏁?/span>
bool inword = false; // 濡傛灉ch鍦ㄤ竴涓崟璇嶄腑錛屽垯inword涓簍rue
printf("Enter text to be analyzed: \n");
while((ch = getchar()) != EOF)
{
if(!isspace(ch) && !ispunct(ch))
chars++;
if(!isspace(ch) && !inword)
{
inword = true;
words++;
}
if(isspace(ch) && inword)
inword = false;
}
printf("The average number of words per word: %ld\n", chars / words);
return 0;
}
#include <stdio.h>
char get_choice(void);
char get_first(void);
int main(void)
{
int low = 1, high = 100, guess = 50;
char ch;
printf("Pick an integer from 1 to 100. I will try to guess it\n");
printf("Un
is your number %d?\n", guess);
while((ch = get_choice()) != 'q')
{
if(ch == 'a')
{
printf("I knew I could do it!\n");
break;
}
else if(ch == 'b')
{
printf("It is too small!\n");
low = guess + 1;
}
else if(ch == 'c')
{
printf("It is too big!\n");
high = guess - 1;
}
guess = (low + high) / 2;
printf("Unis your number %d?\n", guess);
}
printf("Done!\n");
return 0;
}
char get_choice(void)
{
int ch;
printf("Enter the letter of your choice: \n");
printf("a. right b. too small\n");
printf("c. too big q. quit\n");
ch = get_first();
while((ch < 'a' || ch > 'c') && ch != 'q')
{
printf("Please respond with a, b, c, or q.\n");
ch = get_first();
}
return ch;
}
char get_first(void)
{
int ch;
ch = getchar();
while(getchar() != '\n')
continue;
return ch;
}
6銆?br />char get_choice(void);
char get_first(void);
int main(void)
{
int low = 1, high = 100, guess = 50;
char ch;
printf("Pick an integer from 1 to 100. I will try to guess it\n");
printf("Un
is your number %d?\n", guess);while((ch = get_choice()) != 'q')
{
if(ch == 'a')
{
printf("I knew I could do it!\n");
break;
}
else if(ch == 'b')
{
printf("It is too small!\n");
low = guess + 1;
}
else if(ch == 'c')
{
printf("It is too big!\n");
high = guess - 1;
}
guess = (low + high) / 2;
printf("Un
is your number %d?\n", guess);}
printf("Done!\n");
return 0;
}
char get_choice(void)
{
int ch;
printf("Enter the letter of your choice: \n");
printf("a. right b. too small\n");
printf("c. too big q. quit\n");
ch = get_first();
while((ch < 'a' || ch > 'c') && ch != 'q')
{
printf("Please respond with a, b, c, or q.\n");
ch = get_first();
}
return ch;
}
char get_first(void)
{
int ch;
ch = getchar();
while(getchar() != '\n')
continue;
return ch;
}
char get_first(void)
{
int ch;
while((ch = getchar()) == '\n')
continue;
while(getchar() != '\n')
continue;
return ch;
}
7銆?br />{
int ch;
while((ch = getchar()) == '\n')
continue;
while(getchar() != '\n')
continue;
return ch;
}
#include <stdio.h>
#define WORK_OVERTIME 40
#define MULTIPLE 1.5
#define RATE1 0.15
#define RATE2 0.20
#define RATE3 0.25
#define BREAK1 300
#define BREAK2 450
#define BASE1 (BREAK1 * RATE1)
#define BASE2 (BASE1 + (BREAK2 - BREAK1) * RATE2)
char get_choice(void);
char get_first(void);
int main(void)
{
int hour, choise;
double total, tax, net_pay;
double base_pay; // 鍩烘湰宸ヨ祫絳夌駭涓嶈兘鐢?define鏉ュ畾涔変簡錛屽洜涓哄畠瑕侀殢鐫紼嬪簭鑰屾敼鍙樹簡錛屼功涓婄湡鏄儭璇村叓閬?/span>
while((choise = get_choice()) != 'q')
{
switch(choise)
{
case 'a':
base_pay = 8.15;
break; // break鍙槸瀵艱嚧紼嬪簭鑴辯switch璇彞錛岃煩鍒皊witch涔嬪悗鐨勪笅涓鏉¤鍙ワ紒錛侊紒
case 'b':
base_pay = 9.33;
break;
case 'c':
base_pay = 10.00;
break;
case 'd':
base_pay = 11.20;
break;
default:
printf("Program error!\n");
break;
}
printf("Please enter the hour used: ");
scanf("%d", &hour); // 鑾峰彇姣忓懆宸ヤ綔灝忔椂鏁版椂娌℃湁鍍忎功涓婇偅鏍峰垽鏂紝鎴戝伔鎳掍簡錛侊紒錛?/span>
if(hour <= WORK_OVERTIME)
{
total = hour * base_pay;
if (total <= BREAK1)
{
tax = total * RATE1;
net_pay = total - tax;
}
else
{
tax = BASE1 + (total - BREAK1) * RATE2;
net_pay = total - tax;
}
}
else
{
total = base_pay * WORK_OVERTIME + (hour - WORK_OVERTIME) * MULTIPLE * base_pay;
if(total <= BREAK2)
{
tax = BASE1 + (total - BREAK1) * RATE2;
net_pay = total - tax;
}
else
{
tax = BASE2 + (total - BREAK2) * RATE3;
net_pay = total - tax;
}
}
printf("The total pay: %.2f; tax: %.2f; net pay: %.2f\n", total, tax, net_pay);
}
printf("Bye!\n");
return 0;
}
char get_choice(void)
{
int ch;
printf("*****************************************************************\n");
printf("Enter number corresponding to the desired pay rate or action:\n");
printf("a) $8.75/hr\tb) $9.33/hr\n");
printf("c) $10.00/hr\td) $11.20/hr\n");
printf("q) quit\n");
printf("*****************************************************************\n");
printf("Please enter your choise: ");
ch = get_first();
while((ch < 'a' || ch > 'd') && ch != 'q')
{
printf("Please respond with a, b, c, d, or q.\n");
ch = get_first();
}
return ch;
}
char get_first(void)
{
int ch;
while((ch = getchar()) == '\n')
continue;
while(getchar() != '\n')
continue;
return ch;
}
8銆?br />#define WORK_OVERTIME 40
#define MULTIPLE 1.5
#define RATE1 0.15
#define RATE2 0.20
#define RATE3 0.25
#define BREAK1 300
#define BREAK2 450
#define BASE1 (BREAK1 * RATE1)
#define BASE2 (BASE1 + (BREAK2 - BREAK1) * RATE2)
char get_choice(void);
char get_first(void);
int main(void)
{
int hour, choise;
double total, tax, net_pay;
double base_pay; // 鍩烘湰宸ヨ祫絳夌駭涓嶈兘鐢?define鏉ュ畾涔変簡錛屽洜涓哄畠瑕侀殢鐫紼嬪簭鑰屾敼鍙樹簡錛屼功涓婄湡鏄儭璇村叓閬?/span>
while((choise = get_choice()) != 'q')
{
switch(choise)
{
case 'a':
base_pay = 8.15;
break; // break鍙槸瀵艱嚧紼嬪簭鑴辯switch璇彞錛岃煩鍒皊witch涔嬪悗鐨勪笅涓鏉¤鍙ワ紒錛侊紒
case 'b':
base_pay = 9.33;
break;
case 'c':
base_pay = 10.00;
break;
case 'd':
base_pay = 11.20;
break;
default:
printf("Program error!\n");
break;
}
printf("Please enter the hour used: ");
scanf("%d", &hour); // 鑾峰彇姣忓懆宸ヤ綔灝忔椂鏁版椂娌℃湁鍍忎功涓婇偅鏍峰垽鏂紝鎴戝伔鎳掍簡錛侊紒錛?/span>
if(hour <= WORK_OVERTIME)
{
total = hour * base_pay;
if (total <= BREAK1)
{
tax = total * RATE1;
net_pay = total - tax;
}
else
{
tax = BASE1 + (total - BREAK1) * RATE2;
net_pay = total - tax;
}
}
else
{
total = base_pay * WORK_OVERTIME + (hour - WORK_OVERTIME) * MULTIPLE * base_pay;
if(total <= BREAK2)
{
tax = BASE1 + (total - BREAK1) * RATE2;
net_pay = total - tax;
}
else
{
tax = BASE2 + (total - BREAK2) * RATE3;
net_pay = total - tax;
}
}
printf("The total pay: %.2f; tax: %.2f; net pay: %.2f\n", total, tax, net_pay);
}
printf("Bye!\n");
return 0;
}
char get_choice(void)
{
int ch;
printf("*****************************************************************\n");
printf("Enter number corresponding to the desired pay rate or action:\n");
printf("a) $8.75/hr\tb) $9.33/hr\n");
printf("c) $10.00/hr\td) $11.20/hr\n");
printf("q) quit\n");
printf("*****************************************************************\n");
printf("Please enter your choise: ");
ch = get_first();
while((ch < 'a' || ch > 'd') && ch != 'q')
{
printf("Please respond with a, b, c, d, or q.\n");
ch = get_first();
}
return ch;
}
char get_first(void)
{
int ch;
while((ch = getchar()) == '\n')
continue;
while(getchar() != '\n')
continue;
return ch;
}
#include <stdio.h>
char get_choice(void);
char get_first(void);
float get_float(void);
int main(void)
{
char choise;
float first_number, second_number;
while((choise = get_choice()) != 'q')
{
printf("Enter first number: ");
first_number = get_float();
printf("Enter second number: ");
second_number = get_float();
switch(choise)
{
case 'a':
printf("%.1f + %.1f = %.1f\n", first_number, second_number, first_number + second_number);
break;
case 's':
printf("%.1f - %.1f = %.1f\n", first_number, second_number, first_number - second_number);
break;
case 'm':
printf("%.1f * %.1f = %.1f\n", first_number, second_number, first_number * second_number);
break;
case 'd':
if(second_number == 0)
{
printf("Enter a number other than 0: ");
second_number = get_float();
printf("%.1f / %.1f = %.1f\n", first_number, second_number, first_number / second_number);
}
else
printf("%.1f / %.1f = %.1f\n", first_number, second_number, first_number / second_number);
break;
default:
printf("Program error!\n");
break;
}
}
printf("Bye.\n");
return 0;
}
char get_choice(void)
{
int ch;
printf("Enter the operation of your choice: \n");
printf("a. add\ts. subtract\n");
printf("m. multiply\td. divide\n");
printf("q. quit\n");
ch = get_first();
while(ch != 'a' && ch != 's' && ch != 'm' && ch != 'd' && ch != 'q')
{
printf("Please respond with a, s, m, d, or q.\n");
ch = get_first();
}
return ch;
}
char get_first(void)
{
int ch;
while((ch = getchar()) == '\n')
continue;
while(getchar() != '\n')
continue;
return ch;
}
float get_float(void)
{
float input;
char ch;
while((scanf("%f", &input)) != 1)
{
while((ch = getchar()) != '\n')
putchar(ch);
printf(" is not a number.\nPlease enter a ");
printf("number, such as 2.5, -1.78E8, or 3: ");
}
return input;
}
char get_choice(void);
char get_first(void);
float get_float(void);
int main(void)
{
char choise;
float first_number, second_number;
while((choise = get_choice()) != 'q')
{
printf("Enter first number: ");
first_number = get_float();
printf("Enter second number: ");
second_number = get_float();
switch(choise)
{
case 'a':
printf("%.1f + %.1f = %.1f\n", first_number, second_number, first_number + second_number);
break;
case 's':
printf("%.1f - %.1f = %.1f\n", first_number, second_number, first_number - second_number);
break;
case 'm':
printf("%.1f * %.1f = %.1f\n", first_number, second_number, first_number * second_number);
break;
case 'd':
if(second_number == 0)
{
printf("Enter a number other than 0: ");
second_number = get_float();
printf("%.1f / %.1f = %.1f\n", first_number, second_number, first_number / second_number);
}
else
printf("%.1f / %.1f = %.1f\n", first_number, second_number, first_number / second_number);
break;
default:
printf("Program error!\n");
break;
}
}
printf("Bye.\n");
return 0;
}
char get_choice(void)
{
int ch;
printf("Enter the operation of your choice: \n");
printf("a. add\ts. subtract\n");
printf("m. multiply\td. divide\n");
printf("q. quit\n");
ch = get_first();
while(ch != 'a' && ch != 's' && ch != 'm' && ch != 'd' && ch != 'q')
{
printf("Please respond with a, s, m, d, or q.\n");
ch = get_first();
}
return ch;
}
char get_first(void)
{
int ch;
while((ch = getchar()) == '\n')
continue;
while(getchar() != '\n')
continue;
return ch;
}
float get_float(void)
{
float input;
char ch;
while((scanf("%f", &input)) != 1)
{
while((ch = getchar()) != '\n')
putchar(ch);
printf(" is not a number.\nPlease enter a ");
printf("number, such as 2.5, -1.78E8, or 3: ");
}
return input;
}
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