怎么在成员函数SetInfor中设置成员变量的数值
class CStudent

{

  char name;

  char sex;

  int grade;

  int classe;

public:

  CStudent(){}

  int Setlnfor();

  int Showlnfor();

};

int CStudent::Setlbnfor()

{

  CStudent::name = yuan；

  CStudent::sex = nv；

  CStudent::classe= 5;

  return 0;

}

int CStudent::Showlnfor()

{

  std::cout<<CStudent.name<<std::endl<<CStudent.sex<<std::endl;<<CStudent::classe<<std::endl;

}

int main()

{

  CStudent c1(yuan,nv,5);

  c1.Showlnfor();

  return 0;

}

=====运行开始======
:14: 错误：程序中有游离的‘\357’
:14: 错误：程序中有游离的‘\274’
:14: 错误：程序中有游离的‘\233’
:15: 错误：程序中有游离的‘\357’
:15: 错误：程序中有游离的‘\274’
:15: 错误：程序中有游离的‘\233’
:12: 错误：成员函数‘int CStudent::Setlbnfor()’未在类‘CStudent’中声明
: In member function ‘int CStudent::Showlnfor()’:
:21: 错误：‘cout’不是‘std’的成员
:21: 错误：expected primary-expression before ‘.’ token
:21: 错误：‘endl’不是‘std’的成员
:21: 错误：expected primary-expression before ‘.’ token
:21: 错误：‘endl’不是‘std’的成员
:21: 错误：expected primary-expression before ‘<<’ token
:21: 错误：‘endl’不是‘std’的成员
: In function ‘int main()’:
:25: 错误：‘yuan’在此作用域中尚未声明
:25: 错误：‘nv’在此作用域中尚未声明

=====运行结束======

好的谢谢我会注意的