C + + Extract text data from a standard stream

IStream & IStream:: Get (char *, int, char = ' \ n ');

IStream & IStream:: Getline (char *, int, char = ' \ n ');

Function: Extracts the specified number of characters from the text and adds a null character at the end of the string array

Where the first argument points to a character array that accepts character data

The second parameter specifies the maximum number of characters that a character array can hold

The third parameter is used to specify a terminator, which is the default line break character

The extraction terminates when the operation encounters a terminator or extracts to a specified number character

Difference: Get () does not extract the terminating character from the stream, and the terminating character is still in the input stream

Getline () extracts the terminating character from the stream, but the terminating character is discarded

1#include <iostream>2 using namespacestd;3 intMain ()4{CharBUF [ the ] ;5Cin.Get(BUF, the,'y') ;//specifying a terminating character6cout << buf << Endl;//default terminator ' \ n '7Cin.Get(BUF, the ) ; 8cout << buf <<Endl;9Cin.getline (BUF, the,'N' ) ;Tencout << buf <<Endl; OneCin.Get(BUF, the ) ;  Acout << buf <<Endl; -    return 0; -}

1#include <iostream>2#include <fstream>3 using namespacestd;4 intMain ()5{Ifstream inf ("d:\\testnew" ) ; 6    CharBUF [ the ] ;7Inf.getline (BUF, the ) ; 8cout << buf <<"____"<< Inf.gcount () <<Endl;9On.Get(BUF, the ) ; Tencout << buf <<"____"<< Inf.gcount () <<Endl; One inf.close (); A}

C + + Extract text data from a standard stream