字符串长度
#include<stdio.h>
int main(void)
{
const char *mytal[5]={"adding numbers swiftly",
"multiplying accurately",
"stashing data",
"following instructions to the letter",
"understanding the c language"};
printf("%s\n",*mytal[3]);
char mytal_2[5][]={"adding numbers swiftly",
"multiplying accurately",
"stashing data",
"following instructions to the letter",
"understanding the c language"};
printf("%c\n",mytal_2[5][10]);
return 0;
}