C++硬货——deque头文件【保姆级教学】

//deque构造函数
void test01() {
  //1.默认构造
  deque<int>d;
  for (int i = 1; i <= 10; i++)
    d.push_back(i);
  display(d);
  //2.头尾构造
  deque<int>d2(d.begin(),d.end());
  display(d2);
  //3.n个数字构造
  deque<int>d3(10, 666);
  display(d3);
  //4.拷贝构造
  deque<int>d4(d3);
  display(d4);
}
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//deque赋值操作
void test02() {
  deque<int>d1;
  for (int i = 0; i < 10; i++)
    d1.push_back(i);
  display(d1);
  //1.=赋值
  deque<int>d2 = d1;
  display(d2);
  //2.assign赋值
  deque<int>d3;
  d3.assign(d2.begin(),d2.end());
  display(d3);
  //4.assign(n,elem)
  deque<int>d4;
  d4.assign(10, 999);
  display(d4);
}
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//deque大小操作
void test03() {
  deque<int>d;
  for (int i = 1; i <= 10; i++)
    d.push_back(i);
  display(d);
  if (d.empty())
    cout << "d为空！" << endl;
  else
    cout << "d的大小为：" << d.size() << endl;
  deque<int>d2 = d;
  d.resize(15);
  display(d);
  d.resize(5);
  display(d);
  d2.resize(15, 66);
  display(d2);
  d2.resize(5, 66);
  display(d2);
}
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//deque插入删除
void test04() {
  deque<int>d1;
  for (int i = 0; i < 10; i++)
    d1.push_back(i);
  display(d1);
  d1.insert(d1.begin(), 66);
  display(d1);
  deque<int>d2;
  d2.assign(6, 666);
  display(d2);
  d1.insert(d1.end(), d2.begin(), d2.end());
  display(d1);
  d1.erase(d1.begin());
  display(d1);
  d1.clear();
  display(d1);
}
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//deque排序
void test05() {
  deque<int>d;
  d.push_back(10);
  d.push_back(0);
  d.push_back(60);
  d.push_back(6);
  d.push_back(55);
  d.push_back(49);
  display(d);
  sort(d.begin(), d.end());
  display(d);
}
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