c语言，strchr(),查找字符串中第一次字符出现的位置

int main(void)

{

char string[15];

char *ptr, c = 's';

strcpy(string, "This is a string");

ptr = strchr(string, c);



if (ptr)

printf("The character %c is at position: %d\n", c, ptr-string);

else

printf("The character was not found\n");

return 0;

}