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iterator-迭代器
迭代器中copy() and insert iterators
//inserts.cpp copy() and insert iterators #include<iostream> #include<string> #include<iterator> #include<vector> #include<algorithm> using namespace std; void output(const string &s) { cout<<s<<" "; } int main() { string s1[4] = {"fine","fish","fashion","fate"}; string s2[2] = {"busy","bats"}; string s3[2] = {"silly","singers"}; vector<string> words(4); copy(s1,s1+4,words.begin()); for_each(words.begin(),words.end(),output); cout<<endl; copy(s2,s2+2,back_insert_iterator<vector<string>>(words)); for_each(words.begin(),words.end(),output); cout<<endl; copy(s3,s3+2,insert_iterator<vector<string>>(words,words.begin())); for_each(words.begin(),words.end(),output); cout<<endl; return 0; }
结果
fine fish fashion fate fine fish fashion fate busy bats silly singers fine fish fashion fate busy bats
iterator-迭代器
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