4.8 实现 func()函数，在func()中,通过操作arr,实现修改str1到str2字符串,并打印所有字符串，考察对指针与数组与字符串的基本掌握

//已知下面几个数组
    char str1[] = "arr1";
    char str2[] = "aarr2";
    char str3[] = "aaarr3";
    char str4[] = "aaaarr4";
    char str5[] = "aaaaarr5";
    char str6[] = "aaaaaarr6";



    char* a[][3] = {str1,str2,str3,
                    str4,str5,str6};
    char* b[][3] = {"aaaa1","bbbb","cccccc","ddddd","eee","fffff"};

    char* c[][3] = {"cc","cc","cc"};
//现要求
//1.自己定义一个名为arr的数组，用来存储 a,b,c三个数组的地址当其元素成员。
//2.实现一个func()函数，此函数通过操作arr,来修改str1-str6的可修改字符串，并打印所有字符串(共15个小字符串)。