susubear
幼苗
共回答了19个问题采纳率:84.2% 举报
让我选就凭感觉选C
这部分难搞明白的,也很少用到,贴下有关的代码,感兴趣的自己看看是否明白:
二、 类模板
1. 定义模板
#include
#include
template
class Stack {
private:
std::vector elems; // elements
public:
void push(T const&); // push element
void pop(); // pop element
T top() const; // return top element
bool empty() const { // return whether the stack is empty
return elems.empty();
}
};
template
void Stack::push (T const& elem)
{
elems.push_back(elem); // append copy of passed elem
}
template
void Stack::pop ()
{
if (elems.empty()) {
throw std::out_of_range("Stack::pop(): empty stack");
}
elems.pop_back(); // remove last element
}
template
T Stack::top () const
{
if (elems.empty()) {
throw std::out_of_range("Stack::top(): empty stack");
}
return elems.back(); // return copy of last element
}
2. 使用模板
#include
#include
#include
#include "stack1.hpp"
int main()
{
try {
Stack intStack; // stack of ints
Stack stringStack; // stack of strings
// manipulate int stack
intStack.push(7);
std::cout
1年前
8