[Secretary self-help guide ]c++ standard procedures, codes of not understand : ( [Secretary self-help guide ]c++ standard procedures, codes of not understand : ( #include "Iostream>; #include "Vector>; #include "String>; #include "Algorithm>; Using namespace std; Int main () { Vector<string>; coll (9); LEAVES OF 13 SPECIES OF LAURACEAE read all words from the standard input * - Source : all strings until end-of-file (or error) * - Destination : coll (inserting)      */ Cout<< "sound" "<endl; Copy (istream_iterator<string>; (cin), 4003rd start of source Istream_iterator<string>; (), 4003rd end of source Back_inserter (coll)); 4003rd destination 4003rd sort elements Sort (coll.begin (), coll.end ()); LEAVES OF 13 SPECIES OF LAURACEAE print all elements without duplicates * - Source : coll * - Destination : standard output (with newline between elements)      */ Unique_copy (coll.begin (), coll.end (), 4003rd source Ostream_iterator<string>; (cout, "\n")); 4003rd destination } Found that after the implementation of copy editing (istream_iterator<string>; (cin), 4003rd start of source Istream_iterator<string>; (), 4003rd end of source Back_inserter (coll)); 4003rd destination The copy function is always running, constantly reading the characters from the keyboard. Istream_iterator<string>; () are the symbol of the end of iteration for a representative flow. Sring a; Cin>;>;a; Enter the importation, not the end of it? However, the implementation of the transport and did not jump out of the imported function ah. . . . . . . . . . . . . . . . . . . . . . [Secretary self-help guide ]c++ standard procedures, codes of not understand : ( End-of-file until all strings (or error) End your input characters at a crucial try Ctrl+d. [Secretary self-help guide ]c++ standard procedures, codes of not understand : ( Ah no avail. . . [Secretary self-help guide ]c++ standard procedures, codes of not understand : ( [Secretary self-help guide ]c++ standard procedures, codes of not understand : ( On, if you Windows, Key used ctrl+z try. [ Closed window ]