c++ 从一个列表中擦除元素

[c++]代码库

// 从一个列表中擦除元素
#include <list>
#include <iostream>

using namespace std;

void PrintListContents(const list<int>& listInput);

int main() {
	std::list<int> listIntegers;

	// Insert elements at the beginning...
	listIntegers.push_front(4);
	listIntegers.push_front(3);

	// Store an iterator obtained in using the 'insert' function
	list<int>::iterator iElementValueTwo;
	iElementValueTwo = listIntegers.insert(listIntegers.begin(), 2);

	listIntegers.push_front(1);
	listIntegers.push_front(0);

	// Insert an element at the end...
	listIntegers.push_back(5);

	cout << "Initial contents of the list:" << endl;
	PrintListContents(listIntegers);

	listIntegers.erase(listIntegers.begin(), iElementValueTwo);
	cout << "Contents after erasing a range of elements:" << endl;
	PrintListContents(listIntegers);

	cout << "Contents after erasing element '" << *iElementValueTwo << "':"
			<< endl;
	listIntegers.erase(iElementValueTwo);
	PrintListContents(listIntegers);

	listIntegers.erase(listIntegers.begin(), listIntegers.end());
	cout << "Contents after erasing a range:" << endl;
	PrintListContents(listIntegers);

	return 0;
}

void PrintListContents(const list<int>& listInput) {
	if (listInput.size() > 0) {
		// Write values to the screen...
		cout << "{ ";

		std::list<int>::const_iterator iElementLocator;
		for (iElementLocator = listInput.begin()
		; iElementLocator != listInput.end(); ++iElementLocator)
			cout << *iElementLocator << " ";

		cout << "}" << endl << endl;
	} else
		cout << "List is empty!" << endl;
}