输出字符串

#include <stdio.h>
int main() 

{
   char arr1[]="abc";
   printf ("%s\n",arr1);
   return 0;
}

//"\0"是字符串结束标志，不算字符内容

//计算字符串长度

#include <stdio.h>
int main() 

{
   char arr1[]="abc";
   char arr2[]={'a','b','c'};
   printf ("%d\n",strlen(arr1));
   printf ("%d\n",strlen(arr2));
   return 0;
}





//3
//随机值