getline与<<的错误
#include <fstream>using namespace std;
void main()
{
ifstream myIn("a.txt");
ofstream myOut("b.txt");
for(string str;getline(myIn,str);)
myOut<<str<<endl;
}
/* a.txt中的内容是 12 34 56 67 as3
b.txt为空
*/
编译出错：
1>d:\my documents\visual studio 2008\projects\head\head\nafjk.cpp(8) : error C3861: “getline”: 找不到标识符
1>d:\my documents\visual studio 2008\projects\head\head\nafjk.cpp(9) : error C2679: 二进制“<<”: 没有找到接受“std::string”类型的右操作数的运算符(或没有可接受的转换)
1> d:\program files\microsoft visual studio 9.0\vc\include\ostream(653): 可能是“std::basic_ostream<_Elem,_Traits> &std::operator <<<char,std::char_traits<char>>(std::basic_ostream<_Elem,_Traits> &,const char *)”
1> with
1> [
1> _Elem=char,
1> _Traits=std::char_traits<char>
1> ]
1> d:\program files\microsoft visual studio 9.0\vc\include\ostream(700): 或 “std::basic_ostream<_Elem,_Traits> &std::operator <<<char,std::char_traits<char>>(std::basic_ostream<_Elem,_Traits> &,char)”
1> with
1> [
1> _Elem=char,
1> _Traits=std::char_traits<char>
1> ]
1> d:\program files\microsoft visual studio 9.0\vc\include\ostream(738): 或 “std::basic_ostream<_Elem,_Traits> &std::operator <<<std::char_traits<char>>(std::basic_ostream<_Elem,_Traits> &,const char *)”
1> with
1> [
1> _Elem=char,
1> _Traits=std::char_traits<char>
1> ]
1> d:\program files\microsoft visual studio 9.0\vc\include\ostream(785): 或 “std::basic_ostream<_Elem,_Traits> &std::operator <<<std::char_traits<char>>(std::basic_ostream<_Elem,_Traits> &,char)”
1> with
1> [
1> _Elem=char,
1> _Traits=std::char_traits<char>
1> ]
1> d:\program files\microsoft visual studio 9.0\vc\include\ostream(909): 或 “std::basic_ostream<_Elem,_Traits> &std::operator <<<std::char_traits<char>>(std::basic_ostream<_Elem,_Traits> &,const signed char *)”
1> with
1> [
1> _Elem=char,
1> _Traits=std::char_traits<char>
1> ]
1> d:\program files\microsoft visual studio 9.0\vc\include\ostream(916): 或 “std::basic_ostream<_Elem,_Traits> &std::operator <<<std::char_traits<char>>(std::basic_ostream<_Elem,_Traits> &,signed char)”
1> with
1> [
1> _Elem=char,
1> _Traits=std::char_traits<char>
1> ]
1> d:\program files\microsoft visual studio 9.0\vc\include\ostream(923): 或 “std::basic_ostream<_Elem,_Traits> &std::operator <<<std::char_traits<char>>(std::basic_ostream<_Elem,_Traits> &,const unsigned char *)”
1> with
1> [
1> _Elem=char,
1> _Traits=std::char_traits<char>
1> ]
1> d:\program files\microsoft visual studio 9.0\vc\include\ostream(930): 或 “std::basic_ostream<_Elem,_Traits> &std::operator <<<std::char_traits<char>>(std::basic_ostream<_Elem,_Traits> &,unsigned char)”
1> with
1> [
1> _Elem=char,
1> _Traits=std::char_traits<char>
1> ]
1> d:\program files\microsoft visual studio 9.0\vc\include\ostream(170): 或 “std::basic_ostream<_Elem,_Traits> &std::basic_ostream<_Elem,_Traits>::operator <<(std::basic_ostream<_Elem,_Traits> &(__cdecl *)(std::basic_ostream<_Elem,_Traits> &))”
1> with
1> [
1> _Elem=char,
1> _Traits=std::char_traits<char>
1> ]
1> d:\program files\microsoft visual studio 9.0\vc\include\ostream(176): 或 “std::basic_ostream<_Elem,_Traits> &std::basic_ostream<_Elem,_Traits>::operator <<(std::basic_ios<_Elem,_Traits> &(__cdecl *)(std::basic_ios<_Elem,_Traits> &))”
1> with
1> [
1> _Elem=char,
1> _Traits=std::char_traits<char>
1> ]
1> d:\program files\microsoft visual studio 9.0\vc\include\ostream(183): 或 “std::basic_ostream<_Elem,_Traits> &std::basic_ostream<_Elem,_Traits>::operator <<(std::ios_base &(__cdecl *)(std::ios_base &))”
1> with
1> [
1> _Elem=char,
1> _Traits=std::char_traits<char>
1> ]
1> d:\program files\microsoft visual studio 9.0\vc\include\ostream(190): 或 “std::basic_ostream<_Elem,_Traits> &std::basic_ostream<_Elem,_Traits>::operator <<(std::_Bool)”
1> with
1> [
1> _Elem=char,
1> _Traits=std::char_traits<char>
1> ]
1> d:\program files\microsoft visual studio 9.0\vc\include\ostream(210): 或 “std::basic_ostream<_Elem,_Traits> &std::basic_ostream<_Elem,_Traits>::operator <<(short)”
1> with
1> [
1> _Elem=char,
1> _Traits=std::char_traits<char>
1> ]
1> d:\program files\microsoft visual studio 9.0\vc\include\ostream(243): 或 “std::basic_ostream<_Elem,_Traits> &std::basic_ostream<_Elem,_Traits>::operator <<(unsigned short)”
1> with
1> [
1> _Elem=char,
1> _Traits=std::char_traits<char>
1> ]
1> d:\program files\microsoft visual studio 9.0\vc\include\ostream(263): 或 “std::basic_ostream<_Elem,_Traits> &std::basic_ostream<_Elem,_Traits>::operator <<(__w64 int)”
1> with
1> [
1> _Elem=char,
1> _Traits=std::char_traits<char>
1> ]
1> d:\program files\microsoft visual studio 9.0\vc\include\ostream(288): 或 “std::basic_ostream<_Elem,_Traits> &std::basic_ostream<_Elem,_Traits>::operator <<(__w64 unsigned int)”
1> with
1> [
1> _Elem=char,
1> _Traits=std::char_traits<char>
1> ]
1> d:\program files\microsoft visual studio 9.0\vc\include\ostream(308): 或 “std::basic_ostream<_Elem,_Traits> &std::basic_ostream<_Elem,_Traits>::operator <<(long)”
1> with
1> [
1> _Elem=char,
1> _Traits=std::char_traits<char>
1> ]
1> d:\program files\microsoft visual studio 9.0\vc\include\ostream(328): 或 “std::basic_ostream<_Elem,_Traits> &std::basic_ostream<_Elem,_Traits>::operator <<(__w64 unsigned long)”
1> with
1> [
1> _Elem=char,
1> _Traits=std::char_traits<char>
1> ]
1> d:\program files\microsoft visual studio 9.0\vc\include\ostream(349): 或 “std::basic_ostream<_Elem,_Traits> &std::basic_ostream<_Elem,_Traits>::operator <<(__int64)”
1> with
1> [
1> _Elem=char,
1> _Traits=std::char_traits<char>
1> ]
1> d:\program files\microsoft visual studio 9.0\vc\include\ostream(369): 或 “std::basic_ostream<_Elem,_Traits> &std::basic_ostream<_Elem,_Traits>::operator <<(unsigned __int64)”
1> with
1> [
1> _Elem=char,
1> _Traits=std::char_traits<char>
1> ]
1> d:\program files\microsoft visual studio 9.0\vc\include\ostream(390): 或 “std::basic_ostream<_Elem,_Traits> &std::basic_ostream<_Elem,_Traits>::operator <<(float)”
1> with
1> [
1> _Elem=char,
1> _Traits=std::char_traits<char>
1> ]
1> d:\program files\microsoft visual studio 9.0\vc\include\ostream(410): 或 “std::basic_ostream<_Elem,_Traits> &std::basic_ostream<_Elem,_Traits>::operator <<(double)”
1> with
1> [
1> _Elem=char,
1> _Traits=std::char_traits<char>
1> ]
1> d:\program files\microsoft visual studio 9.0\vc\include\ostream(430): 或 “std::basic_ostream<_Elem,_Traits> &std::basic_ostream<_Elem,_Traits>::operator <<(long double)”
1> with
1> [
1> _Elem=char,
1> _Traits=std::char_traits<char>
1> ]
1> d:\program files\microsoft visual studio 9.0\vc\include\ostream(450): 或 “std::basic_ostream<_Elem,_Traits> &std::basic_ostream<_Elem,_Traits>::operator <<(const void *)”
1> with
1> [
1> _Elem=char,
1> _Traits=std::char_traits<char>
1> ]
1> d:\program files\microsoft visual studio 9.0\vc\include\ostream(470): 或 “std::basic_ostream<_Elem,_Traits> &std::basic_ostream<_Elem,_Traits>::operator <<(std::basic_streambuf<_Elem,_Traits> *)”
1> with
1> [
1> _Elem=char,
1> _Traits=std::char_traits<char>
1> ]
1> 试图匹配参数列表“(std::ofstream, std::string)”时
1>生成日志保存在“file://d:\My Documents\Visual Studio 2008\Projects\Head\Head\Debug\BuildLog.htm”
1>Head - 2 个错误，0 个警告
========== 生成: 成功 0 个，失败 1 个，最新 0 个，跳过 0 个 ==========
请高手帮忙分析一下,谢谢！
