帮忙改错（新人，多谢大家帮助）

[kandianshi]

//================================
//f0814.cpp
//静态成员函数
//================================
#include<iostream>
using namespace std;
//-------------------------------
class Student
{
static int number;
string name;
public:
void set(string str)
{
name = str;
++number;
}
static int printNumber()
{
cout<<number<<" total numbers\n";
}
void print()
{
cout<<name<<" -> strdents are "<<number<<" numbers\n";
}
};
//---------------------------------
int Student::number = 0; //静态数据成员在类外非配空间和初始化
//---------------------------------
void fn()
{
Student s1;
s1.set("Jenny");
Student s2;
s2.set("Randy");
s1.printNumber();
}
//------------------------------------
int main()
{
Student s;
s.set("Smith");
fn();
Student::printNumber();
}
//--------------------------------------


谁能给解释一下为什么我标红色的部分会报错，我用的vs2005编译器。这个语法好像是没问题的

[likefermat]

void print()
{
cout < <name < <" -> strdents are " < <number < <" numbers\n";
}
};

多了个}?

[wuyu637]

没有错。。：）也是2005

[likefermat]

你的<<不是《

[kandianshi]

没有多“}”
我的怎么提示


0814（问）.cpp
.\f0814（问）.cpp(24) : error C2679: binary '<<' : no operator found which takes a right-hand operand of type 'std::string' (or there is no acceptable conversion)
E:\Program Files\Microsoft Visual Studio 8\VC\include\ostream(650): could be 'std::basic_ostream<_Elem,_Traits> &std::operator <<<char,std::char_traits<char>>(std::basic_ostream<_Elem,_Traits> &,const char *)'
with
[
_Elem=char,
_Traits=std::char_traits<char>
]
E:\Program Files\Microsoft Visual Studio 8\VC\include\ostream(697): or 'std::basic_ostream<_Elem,_Traits> &std::operator <<<char,std::char_traits<char>>(std::basic_ostream<_Elem,_Traits> &,char)'
with
[
_Elem=char,
_Traits=std::char_traits<char>
]
E:\Program Files\Microsoft Visual Studio 8\VC\include\ostream(735): or 'std::basic_ostream<_Elem,_Traits> &std::operator <<<std::char_traits<char>>(std::basic_ostream<_Elem,_Traits> &,const char *)'
with
[
_Elem=char,
_Traits=std::char_traits<char>
]
E:\Program Files\Microsoft Visual Studio 8\VC\include\ostream(782): or 'std::basic_ostream<_Elem,_Traits> &std::operator <<<std::char_traits<char>>(std::basic_ostream<_Elem,_Traits> &,char)'
with
[
_Elem=char,
_Traits=std::char_traits<char>
]
E:\Program Files\Microsoft Visual Studio 8\VC\include\ostream(906): or 'std::basic_ostream<_Elem,_Traits> &std::operator <<<std::char_traits<char>>(std::basic_ostream<_Elem,_Traits> &,const signed char *)'
with
[
_Elem=char,
_Traits=std::char_traits<char>
]
E:\Program Files\Microsoft Visual Studio 8\VC\include\ostream(913): or 'std::basic_ostream<_Elem,_Traits> &std::operator <<<std::char_traits<char>>(std::basic_ostream<_Elem,_Traits> &,signed char)'
with
[
_Elem=char,
_Traits=std::char_traits<char>
]
E:\Program Files\Microsoft Visual Studio 8\VC\include\ostream(920): or 'std::basic_ostream<_Elem,_Traits> &std::operator <<<std::char_traits<char>>(std::basic_ostream<_Elem,_Traits> &,const unsigned char *)'
with
[
_Elem=char,
_Traits=std::char_traits<char>
]
E:\Program Files\Microsoft Visual Studio 8\VC\include\ostream(927): or 'std::basic_ostream<_Elem,_Traits> &std::operator <<<std::char_traits<char>>(std::basic_ostream<_Elem,_Traits> &,unsigned char)'
with
[
_Elem=char,
_Traits=std::char_traits<char>
]
E:\Program Files\Microsoft Visual Studio 8\VC\include\ostream(168): or 'std::basic_ostream<_Elem,_Traits> &std::basic_ostream<_Elem,_Traits>::operator <<(std::basic_ostream<_Elem,_Traits> &(__cdecl *)(std::basic_ostream<_Elem,_Traits> &))'
with
[
_Elem=char,
_Traits=std::char_traits<char>
]
E:\Program Files\Microsoft Visual Studio 8\VC\include\ostream(174): or 'std::basic_ostream<_Elem,_Traits> &std::basic_ostream<_Elem,_Traits>::operator <<(std::basic_ios<_Elem,_Traits> &(__cdecl *)(std::basic_ios<_Elem,_Traits> &))'
with
[
_Elem=char,
_Traits=std::char_traits<char>
]
E:\Program Files\Microsoft Visual Studio 8\VC\include\ostream(181): or 'std::basic_ostream<_Elem,_Traits> &std::basic_ostream<_Elem,_Traits>::operator <<(std::ios_base &(__cdecl *)(std::ios_base &))'
with
[
_Elem=char,
_Traits=std::char_traits<char>
]
E:\Program Files\Microsoft Visual Studio 8\VC\include\ostream(188): or 'std::basic_ostream<_Elem,_Traits> &std::basic_ostream<_Elem,_Traits>::operator <<(std::_Bool)'
with
[
_Elem=char,
_Traits=std::char_traits<char>
]
E:\Program Files\Microsoft Visual Studio 8\VC\include\ostream(208): or 'std::basic_ostream<_Elem,_Traits> &std::basic_ostream<_Elem,_Traits>::operator <<(short)'
with
[
_Elem=char,
_Traits=std::char_traits<char>
]
E:\Program Files\Microsoft Visual Studio 8\VC\include\ostream(241): or 'std::basic_ostream<_Elem,_Traits> &std::basic_ostream<_Elem,_Traits>::operator <<(unsigned short)'
with
[
_Elem=char,
_Traits=std::char_traits<char>
]
E:\Program Files\Microsoft Visual Studio 8\VC\include\ostream(261): or 'std::basic_ostream<_Elem,_Traits> &std::basic_ostream<_Elem,_Traits>::operator <<(int)'
with
[
_Elem=char,
_Traits=std::char_traits<char>
]
E:\Program Files\Microsoft Visual Studio 8\VC\include\ostream(286): or 'std::basic_ostream<_Elem,_Traits> &std::basic_ostream<_Elem,_Traits>::operator <<(__w64 unsigned int)'
with
[
_Elem=char,
_Traits=std::char_traits<char>
]
E:\Program Files\Microsoft Visual Studio 8\VC\include\ostream(306): or 'std::basic_ostream<_Elem,_Traits> &std::basic_ostream<_Elem,_Traits>::operator <<(long)'
with
[
_Elem=char,
_Traits=std::char_traits<char>
]
E:\Program Files\Microsoft Visual Studio 8\VC\include\ostream(326): or 'std::basic_ostream<_Elem,_Traits> &std::basic_ostream<_Elem,_Traits>::operator <<(__w64 unsigned long)'
with
[
_Elem=char,
_Traits=std::char_traits<char>
]
E:\Program Files\Microsoft Visual Studio 8\VC\include\ostream(347): or 'std::basic_ostream<_Elem,_Traits> &std::basic_ostream<_Elem,_Traits>::operator <<(__int64)'
with
[
_Elem=char,
_Traits=std::char_traits<char>
]
E:\Program Files\Microsoft Visual Studio 8\VC\include\ostream(367): or 'std::basic_ostream<_Elem,_Traits> &std::basic_ostream<_Elem,_Traits>::operator <<(unsigned __int64)'
with
[
_Elem=char,
_Traits=std::char_traits<char>
]
E:\Program Files\Microsoft Visual Studio 8\VC\include\ostream(388): or 'std::basic_ostream<_Elem,_Traits> &std::basic_ostream<_Elem,_Traits>::operator <<(float)'
with
[
_Elem=char,
_Traits=std::char_traits<char>
]
E:\Program Files\Microsoft Visual Studio 8\VC\include\ostream(408): or 'std::basic_ostream<_Elem,_Traits> &std::basic_ostream<_Elem,_Traits>::operator <<(double)'
with
[
_Elem=char,
_Traits=std::char_traits<char>
]
E:\Program Files\Microsoft Visual Studio 8\VC\include\ostream(428): or 'std::basic_ostream<_Elem,_Traits> &std::basic_ostream<_Elem,_Traits>::operator <<(long double)'
with
[
_Elem=char,
_Traits=std::char_traits<char>
]
E:\Program Files\Microsoft Visual Studio 8\VC\include\ostream(448): or 'std::basic_ostream<_Elem,_Traits> &std::basic_ostream<_Elem,_Traits>::operator <<(const void *)'
with
[
_Elem=char,
_Traits=std::char_traits<char>
]
E:\Program Files\Microsoft Visual Studio 8\VC\include\ostream(468): or 'std::basic_ostream<_Elem,_Traits> &std::basic_ostream<_Elem,_Traits>::operator <<(std::basic_streambuf<_Elem,_Traits> *)'
with
[
_Elem=char,
_Traits=std::char_traits<char>
]
while trying to match the argument list '(std::ostream, std::string)'
生成日志保存在“file://d:\My Documents\Visual Studio 2005\Projects\ch08\ch08\Debug\BuildLog.htm”
ch08 - 1 个错误，0 个警告
========== 生成: 0 已成功, 1 已失败, 0 最新, 0 已跳过 ==========

[rollrock1987]

问题很严重
一：使用了string 就必须有 #include <string>
二： static int printNumber()
{
cout <<number <<" total numbers\n";
//return 0;
}
你没有返回值

别的没有错 改下就行了


接分

[likefermat]

没返回值。。。是的

[pengzhixi]

编译没错误，只是你要注意下<<中间没空格

[OenAuth.Core]

你的那个地方没问题，少了个头文件，少了个返回，帮你改好了

#include <iostream> 
#include <string>//少了头文件
using namespace std; 
//------------------------------- 
class Student 
{ 
	static int number; 
	string name; 
public: 
	void set(string str) 
	{ 
	name = str; 
	++number; 
	} 
	static int printNumber() 
	{ 
	cout <<number <<" total numbers\n"; 
	return number;//这个地方必须返回一个值
	} 
	 void print() 
	{ 
	cout <<name <<" -> strdents are " <<number <<" numbers\n"; 
	}
};
//--------------------------------- 
int Student::number = 0;  //静态数据成员在类外非配空间和初始化 
//--------------------------------- 
void fn() 
{ 
	Student s1; 
	s1.set("Jenny"); 
	Student s2; 
	s2.set("Randy"); 
	s1.printNumber(); 
} 
//------------------------------------ 
int main() 
{ 
	Student s; 
	s.set("Smith"); 
	fn(); 
	Student::printNumber(); 
} 
//-------------------------------------- 

[jia_xiaoxin]

没有包含头文件
#include <string>
没有返回值

[southbirdfly]

前面应该要加#include<string>...
还有main函数和 printNumber函数没有返回值....
我用的是VC6～

[kandianshi]

多谢了，你让我知道了至少有问题要多去思考下是不是少了什么重要的文件。
还有几位朋友说的也很不错呵呵，不过5楼的兄弟回答最快了呵呵

[Quote=引用 5 楼 rollrock1987 的回复:]
问题很严重
一：使用了string 就必须有 #include <string>
二： static int printNumber()
{
cout < <number < <" total numbers\n";
//return 0;
}
你没有返回值

别的没有错 改下就行了


接分
[/Quote]