Question

使用STL通用算法remove()从list中删除元素

#include <iostream>#include <string>#include <list>#include <algorithm>using namespace std; PrintIt(string& AString) { cout << AString << endl; } int main (void) {    list<string> Birds;    list<string>::iterator NewEnd;     Birds.push_back("cockatoo");    Birds.push_back("galah");    Birds.push_back("cockatoo");    Birds.push_back("rosella");    Birds.push_back("king parrot");     cout << "Original list" << endl;    for_each(Birds.begin(), Birds.end(), PrintIt);     NewEnd = remove(Birds.begin(), Birds.end(), "cockatoo");//这里的NewEnd起什么作用     cout << endl << "List according to new past the end iterator" << endl;    for_each(Birds.begin(), NewEnd, PrintIt);     cout << endl << "Original list now. Care required!" << endl;    for_each(Birds.begin(), Birds.end(), PrintIt);}输出结果将为：Original listcockatoogalahcockatoorosellaking parrot List according to new past the end iteratorgalahrosellaking parrot Original list now. Care required!galahrosellaking parrotrosellaking parrot//这个结果怎么出来滴呀！

Answer 1

这排版让人蛋疼，……