论坛上看到的帖子，vc 2003中 错误

Question

读入文件然后每2个字符添加一个标点，我拿下来测试后，发现2003中需要定义ifstream和ofstream，但还是有2个错误莫名其妙，我的分号有啊#include "stdafx.h"
#include <fstream>
typedef basic_ifstream<char, char_traits<char> > ifstream;
typedef basic_ofstream<char, char_traits<char> > ofstream;
using namespace std;int _tmain(int argc, _TCHAR* argv[]){
    ifstream ifile("1.txt");
    ofstream ofile("2.txt");
    char c ;
    while(ifile.get(c))
    {        if(int(c)>0)
            ofile<<c;
        else
        {
            ofile<<c;
            ifile.get(c);
            ofile<<c;
            ofile<<'.';
        }
            
            
    }
        ifile.close();
        ofile.close();
        system("pause");
      
return 0;
}
错误提示：e:\vc\doublechar\doublechar\doublechar.cpp(6) : error C2143: 语法错误 : 缺少“;”(在“<”的前面)

Answer 1

#include "stdafx.h" 
#include <fstream> 
using namespace std; 
typedef basic_ifstream <char, char_traits <char> > ifstream; 
typedef basic_ofstream <char, char_traits <char> > ofstream; int _tmain(int argc, _TCHAR* argv[]) { 
    ifstream ifile("1.txt"); 
    ofstream ofile("2.txt"); 
    char c ; 
    while(ifile.get(c)) 
    {         if(int(c)>0) 
            ofile < <c; 
        else 
        { 
            ofile < <c; 
            ifile.get(c); 
            ofile < <c; 
            ofile < <'.'; 
        } 
            
            
    } 
        ifile.close(); 
        ofile.close(); 
        system("pause"); 
      
return 0; 
} 

Answer 2

还是报错e:\vc\doublechar\doublechar\doublechar.cpp(10) : error C2872: “ifstream” : 不明确的符号
        可能是“e:\vc\doublechar\doublechar\doublechar.cpp(4) : std::basic_ifstream<_Elem,_Traits> ifstream”
        with
        [
            _Elem=char,
            _Traits=std::char_traits<char>
        ]
        或      “d:\Visual studio 2003\Vc7\include\iosfwd(485) : std::ifstream”
e:\vc\doublechar\doublechar\doublechar.cpp(11) : error C2872: “ofstream” : 不明确的符号
        可能是“e:\vc\doublechar\doublechar\doublechar.cpp(5) : std::basic_ofstream<_Elem,_Traits> ofstream”
        with
        [
            _Elem=char,
            _Traits=std::char_traits<char>
        ]
        或      “d:\Visual studio 2003\Vc7\include\iosfwd(486) : std::ofstream”

Answer 3

#include<iostream>
#include <fstream> 
#include<TCHAR.h>using namespace std; int _tmain(int argc, _TCHAR* argv[]) { 
    ifstream ifile("1.txt"); 
    ofstream ofile("2.txt"); 
    char c ; 
    while(ifile.get(c)) 
    {         if(int(c)>0) 
            ofile <<c; 
        else 
        { 
            ofile <<c; 
            ifile.get(c); 
            ofile <<c; 
            ofile <<'.'; 
        } 
            
            
    } 
        ifile.close(); 
        ofile.close(); 
        system("pause"); 
      
return 0; 
} 

Answer 4

e:\vc\doublechar\doublechar\doublechar.cpp(36) : fatal error C1010: 在查找预编译头指令时遇到意外的文件结尾