递归和非递归分别实现strlen

//递归和非递归分别实现strlen
////int MyStrlen(const char *str)
////{
////  assert(str);
//// int count = 0;
//// while (*str)
//// {
//// str++;
//// count++;
//// }
//// return count;
////}
////int MyStrlen(const char *str)
////{
////  assert(str);
//// if (*str=='\0')
//// return 0;
//// else
//// return 1 + MyStrlen(str + 1);
////}
int MyStrlen(const char *str)
{
const char *p = str;
while (*p)
{
p++;
}
return p - str;
}
int main()
{
char arr[] = "abcdefg";
int ret = MyStrlen(arr);
printf("%d\n", ret);
system("pause");
return 0;

}

结果：