我的第四个代码

#define _CRT_SECURE_NO_WARNINGS 1
#include<stdio.h>

int main()
{
char arr1[] = "abc";
char arr2[] = { 'a', 'b', 'c','\0' };//一段数组的结束标志是\0
printf("%d\n", strlen(arr1));
printf("%d\n", strlen(arr2));

return 0;

}

//对数组的学习，对数组长度的打印