// 6.16.7
int main(void)
{
char word[100];
int length;
scanf("%s", word);
printf("word is %d\n", strlen(word));
for (length = strlen(word) - 1;length >= 0; length--)
{
printf("%c", word[length]);
}
printf("\n");
return 0;}
原文：https://www.cnblogs.com/EisNULL/p/10589633.html