c++ 字符串

#include "stdafx.h"
#include <iostream>
//using namespace std;
using std::cout;
using std::endl;
using std::cin;
int main(void)
{
    char dog[3] = { ‘d‘,‘o‘,‘g‘ };
    char pig[4] = { ‘p‘,‘i‘,‘g‘,‘\0‘ };
    cout << strlen(dog) << endl;
    cout << strlen(pig) << endl;//输出结果为3，说明strlen是字符串中除\0外有效字符的个数
    cin.get();
    return 0;
}