Question

error C2501: 'Matrix::Complex' : missing storage-class or type specifiers 是什么原因呢？

: error C2143: syntax error : missing ';' before '&'
: error C2501: 'Matrix::Complex' : missing storage-class or type specifiers
error C2501: 'Matrix::operator`()'' : missing storage-class or type specifiers

程序如下：
//构造矩阵类MATRIX_H
#ifndef MATRIX_H
#define MATRIX_H

#include <Complex>
#include <iostream>

using namespace std;

class Matrix
{
friend ostream & operator<<(ostream &,const Matrix &);
friend istream & operator>>(istream &,Matrix &);//输入矩阵元素时，列之间请以“,”隔开，行之间请以“;”隔开
friend Matrix diag(Matrix &);//提取方阵对角元素
friend Matrix con(Matrix &);//求共轭矩阵
public:
Matrix(int r=0,int c=0);
Matrix(const Matrix &M);
~Matrix();
int getRow() const;
int getCol() const;
int getsize() const;
Complex& operator()(int i,int j);//引用
const Matrix &operator=(const Matrix &);//赋值
Matrix operator==(const Matrix &) const;//判断相等，输出相同大小的矩阵 比较的两个矩阵应该行列相等
Matrix operator!=(const Matrix &) const;//判断不等，输出相同大小的矩阵 比较的两个矩阵应该行列相等
Matrix operator~();//矩阵转置
Matrix operator+(Matrix &);//矩阵元素相加
Matrix operator-(Matrix &);//矩阵元素相减
Matrix operator*(Matrix &);//矩阵元素相乘
Matrix operator/(Matrix &);//矩阵元素相除
Matrix operator&(Matrix &);//矩阵乘法
static int getMatrixCount();
private:
Complex *ptr;
int Row;
int Col;
int size;
static int MatrixCount;
};
#endif
...

Answer 1

#include <iostream.h>
viod main()/*应该是void不是viod*/
{
int i=55,j=88;
if(i=3)/*删除了分号*/
cout<<"i=3,";
else
cout<<"i!=3,";
if(j<3)/*删除了分号*/
cout<<"j<3,";
cout<<"OK!"<<endl;
}

追问

这是神马