char* ch="hello";

cout<<ch[0];

char ch_a[] = "hello";

cout<<ch_a;

string ch_str = "hello";

cout<<ch_str;

int* data= new int[10];

data[1] = 1;

cout<<data;

cout<< "G++ " << __VERSION__ << endl;

//test_01();

//test_02();

// 第1章

//example_01_06();

//example_01_07();

//ex_01_01();

//ex_01_02();

//ex_01_05();

//ex_01_06();

//ex_01_07();

// 第2章

//int elem = 0;

//example_02_01(10, elem);

//example_02_02();

//const vector<int> *elems = example_02_03(3);

//elems = example_02_03(5);

//elems = example_02_03(7);

//display<int>(elems);

//int elem = 0;

//example_02_04(5, elem);

//cout<<"pos:"<<5<<", elem:"<<elem<<endl;

//example_02_04(7, elem);

//cout<<"pos:"<<7<<", elem:"<<elem<<endl;

//int elem = 0;

//example_02_05(5, elem, example_02_03);

//cout<<elem;

//int pos=9;

//int elem;

//ex_02_02(pos, elem);

//cout<<elem;

//cout<<ex2_5_max(1,4)<<endl;

//cout<<ex2_5_max("a", "d")<<endl;

//cout<<ex2_5_max(1.2f, 4.1f)<<endl;

//cout<<ex2_6_max(1,4)<<endl;

//cout<<ex2_6_max("a", "d")<<endl;

//cout<<ex2_6_max(1.2f, 4.1f)<<endl;

// 第3章

const int size=8;

int x[8] = {1,2,3,4,5,6,7,8};

vector<int> vec(x, x+8);

vector<int>::iterator it;

const int* val = find(x, size, 5);

const int* val1 = find(x, x + size, 6);

const int* val3 = find(vec_begin(vec), vec_end(vec), 7);

it = find(vec.begin(), vec.end(), 8);

cout<<*val<<", "<<*val1<<", "<<*val3<< ", "<< *it<<endl;

return 0;