#include <stdio.h>
#include <stdlib.h>
#include <string.h>
/* 字符串以'\0'结尾 */
int main(void) {
char str1[] = "I Can Eat Glass";
char str2[20] = "I Can Eat Glass";
printf("str1:%s\nsize:%lu\nstr2:%s\nsize:%lu\n", str1, strlen(str1), str2,
strlen(str2));
return EXIT_SUCCESS;
}