C_ÔËÓÃdo
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# include <math.h>
# include <stdio.h> /* Êýѧº¯Êý¿â */
int main()
{
/* ÓÃs±íʾ¶àÏîʽµÄÖµ£¬ÓÃt±íʾÿһÏîµÄÖµ */
double s, t, x; // ´Ë´¦ÓÃË«¾«¶ÈÉùÃ÷±äÁ¿
int n;
printf("please input x: ");
scanf("%lf", &x); // £¥lf ´ú±íÓÃË«¾«¶ÈÊäÈë
/* ¸³³õÖµ */
t = x;
n = 1;
s = x;
/* ½øÐеþ¼ÓÔËËã */
do
{
n = n + 2 ;
t = t * (-x*x)/((float)(n)-1)/(float)(n);
s = s + t;
} while (fabs(t)>=1e-8); // ±¾À´ÊÇÒª´óÓÚ0,µ«Ò²¿É´óÓÚÒ»¸öºÜСµÄÊý¼´¿É
printf("sin(%f) = %lf\n", x, s);
return 0;
}
Ïà¹ØÎĵµ£º
Àý£º#define NELE(a) (sizeof(a) / sizeof(a[0]))
int main() {
char str[] = {'E', 'M', 'C'};
for (int d=-1; d<=(NELE(str)-2);d++)
printf("%c",str[d+1]);
return 0;
}
ÅжÏprintf£¨£©Êä³öµÄÊÇʲô£¬½á¹û¿ÉÄܳöºõÒâÁÏ£¬Ê²Ã´Ò²Ã»ÓÐÊä³ö£¬ÔÒòÄØ£¿ÔÒò ......
ÔÚCÓïÑÔÖУ¬½á¹¹ÊÇÒ»ÖÖ¸´ºÏÊý¾ÝÀàÐÍ£¬Æä¹¹³ÉÔªËؼȿÉÒÔÊÇ»ù±¾Êý¾ÝÀàÐÍ£¨Èçint¡¢long¡¢floatµÈ£©µÄ±äÁ¿£¬Ò²¿ÉÒÔÊÇһЩ¸´ºÏÊý¾ÝÀàÐÍ£¨ÈçÊý×é¡¢½á¹¹¡¢ÁªºÏµÈ£©µÄÊý¾Ýµ¥Ôª¡£ÔڽṹÖУ¬±àÒëÆ÷Ϊ½á¹¹µÄÿ¸ö³ÉÔ±°´Æä×ÔÈ»¶Ô½ç£¨alignment£©Ìõ¼þ·ÖÅä¿Õ¼ä¡£¸÷¸ö³ÉÔ±°´ÕÕËüÃDZ»ÉùÃ÷µÄ˳ÐòÔÚÄÚ´æÖÐ˳Ðò´ ......
C/C++ÖеÄSplitº¯ÊýÊÇstrtok()Æ亯ÊýÔÐÍÈçÏÂ:
char * strtok (char * str, const char * delimiters);
º¯Êý˵Ã÷
strtok()ÓÃÀ´½«×Ö·û´®·Ö¸î³ÉÒ»¸ö¸öƬ¶Î¡£²ÎÊýstrÖ¸ÏòÓû·Ö¸îµÄ×Ö·û´®£¬²ÎÊýdelimitersÔòΪ·Ö¸î×Ö·û´®£¬µ±strtok()ÔÚ²ÎÊý
strµÄ×Ö·û´®Öз¢ÏÖµ½²ÎÊýdelimitersµÄ·Ö¸î×Ö·ûʱÔò»á½«¸Ã×Ö·û¸ÄΪ'\0'×Ö·û ......
Ô´Âë:
# include <stdio.h>
int main()
{
/* sex´ú±íÊäѪÕßµÄÐÔ±ð£¬weight´ú±íÊäѪÕßµÄÌåÖØ£¬cubage´ú±íÊäѪÁ¿ */
int sex, weight, cubage;
printf("Çë¸ø³öÊäѪÕßµÄÐÔ±ð£¨Å®ÐÔΪ¸ºÊý£©ºÍÌåÖØ£º(ÓöººÅ¸ô¿ª)");
&nbs ......
Ô´Âë:
# include <stdio.h>
int main()
{
int x, y, num1, num2, temp;
printf("ÇëÊäÈëÁ½¸öÕýÕûÊý£º\n");
scanf("%d %d", &num1, &num2);
if(num1 < num2)
......