Spy000的专栏

//思考题一：// testStatic.cpp : 请问下面的代码有没有错误？怎么理解？//#include using namespace std;class A{public: int i; static A a;};A A::a;int main(){ A::a.a.a.a.a

初级 C++ 程序员常犯的一个错误是，采用以下方式声明一个用默认构造函数初始化的对象： // oops! declares a function, not an object Sales_item myobj();The declaration of myobj compiles without complaint. However, when we t

Exercise 9.43:Use a stack to process parenthesized expressions. When you see an open parenthesis, note that it was seen. When you see a close parenthesis after an open parenthesis,pop elements d

C++是最难的语言。这个世界上最难的编程语言可能非C++莫属了。你千万不要以为几天就可以学好C++，C++的学习曲线是相当BT的，你可以看看这篇文章。C++是一门很自由的语言，自由到了有点BT和恐怖的地步。我甚至认为C++并不是一门成熟的编程语言，因为太容易犯错了。所以，你一定要在一开始就要有很小心谨慎的态度，并把C++当成一种难以训服的猛兽来看待。多问“为什么要这样”的问题。学习

Exercise 9.32:Explain what the following program does:解释下面程序实现的功能： vector svec; svec.reserve(1024); string text_word; while (cin >> text_word) svec.push_bac

Exercise 9.27:Write a program to process a list of strings. Look for a particular value and, if found, remove it. Repeat the program using adeque.编写程序处理一个 string 类型的 list 容器。在该容器中寻找一个特殊值，如果找到，

Exercise 9.20:Write a program to compare whether a vector contains the same elements as alist.编写程序判断一个 vector 容器所包含的元素是否与一个 list 容器的完全相同。#include#include#includeusing namespace

Exercise 9.18:Write a program to copy elements from a list of ints into twodeques. Thelist elements that are even should go into onedeque and those that are odd into the second.编写程序将 int 型的 li

Exercise 9.39:Write a program that, given the strings已知有如下 string 对象： string line1 = "We were her pride of 10 she named us:"; string line2 = "Benjamin, Phoenix, the Prodigal" s

Exercise 9.38:Write a program that, given the string已知有如下 string 对象： "ab2c3d7R4E6"finds each numeric character and then each alphabetic character. Write two versions of the program.

class Base{public: virtual void display(const std::string& strShow = "I am Base class !") { std::cout << strShow << std::endl; } virtual ~Base(){}};class Derive: p

//思考题二：理解下面的代码，说说这段代码的优点和缺点。#include #include #include #include using namespace std;class TestClass{public: TestClass(size_t val = 0) : bound(val) { } boo

// testFunc.cpp : 关于调用规范和函数指针#include using namespace std; class Demo{ int x, y; public: Demo(int x, int y) : x(x), y(y) { } virtual void __stdc

自己实现的一个简单的string类，原来以为挺简单的，真正写起来才发现，还是有很多细枝末节的东西没有考虑清楚哦；比如：1.insert的在pos处插入是表示 "插入在索引为pos的元素之前"比如对于s1="abcd", s1.insert(2, f), s1变成了"abfcd"2.remove(char c)这个接口表示删除simple_string中所有的c. 比如s1="a