C++：string和数组相互赋值

#include <iostream>
#include <cstring>
#include <string>

using namespace std;

int main()
{
	//char data[1] = {0};
	//char data[2] = {0, 1};
	char data[3] = {0, 1, 0};
	string element;

	element.assign(data, sizeof(data));
	element += "";

	int size = element.size();
	cout << "data size:" << size << endl;

	char *arr = new char [size];
	memcpy(arr, element.data(), size);

	for(int i = 0; i < size; i++)
	{
		cout << "arr[" << i << "] = " << (int)arr[i] << endl;
	}

	if(arr) delete [] arr;

	return 0;
}

sxn7szh@SGHVM011035-VM:~/demo$ g++ string_test.cpp
sxn7szh@SGHVM011035-VM:~/demo$ ./a.out
data size:3
arr[0] = 0
arr[1] = 1
arr[2] = 0