int?pos?=?0;
char?max_char?=?0;
int?i?=?0;
for(?i?=?0;?str[?i]?!=?'\0';?i++){
if(?max_char?<?str[?i])
max_char?=?str[?i];
pos?=?i;
}
printf("最大的字符是%c\n",str[?pos]);
printf("最大字符的位置是%d\n",?pos?+?1);