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[英]Error request for member getName which is of non-class type 'char'
[英]Error request for member print which is of non-class type 'char'
每次我嘗試運行打印功能時,都會告訴我:
SalesDB.cpp:61:19: error: request for member ‘print’ in ‘((SalesDB*)this)->SalesDB::salesPerson[i]’, which is of non-class type ‘char’
salesPerson[i].print();
^
我似乎無法弄清楚如何解決此問題。 我包括了所有需要的代碼。 讓我知道是否需要更多。
銷售數據庫
#ifndef SALESDB_H
#define SALESDB_H
#include "Seller.h"
class SalesDB
{
// Data members and method prototypes for the SalesDB class go here
private:
char salesPerson[30];
int numSellers;
public:
SalesDB();
SalesDB(const char*);
void print();
};
#endif
SalesDB.cpp
#include "SalesDB.h"
#include <iostream>
#include <cstring>
#include <iomanip>
#include <fstream>
#include <cstdlib>
using std::cout;
using std::endl;
using std::ifstream;
using std::ios;
//default constructor
SalesDB::SalesDB()
{
numSellers = 0;
}
//constructor
SalesDB::SalesDB(const char* ptr)
{
ifstream salesdb;
salesdb.open("/location of file", ios::binary); //left out location on purpose
if(!salesdb)
{
cout<<"Error...";
exit(1);
}
else
{
salesdb.read((char*) this, sizeof(SalesDB));
}
salesdb.close();
}
//print function
void SalesDB::print()
{
for (int i=0; i < numSellers; i++)
{
cout << "Sales Database Listing " << i << ": " << endl;
salesPerson[i].print();
}
}
賣方
class Seller
{
public:
Seller();
Seller(char[],double);
char* getName();
double getSalesTotal();
void setSalesTotal(double);
void print();
private:
char name[30]{};
double salesTotal = 0;
};
#endif
Seller.cpp
#include "Seller.h"
#include <iomanip>
#include <iostream>
#include <cstring>
using std::cout;
using std::left;
using std::right;
using std::endl;
using std::setw;
using std::fixed;
using std::setprecision;
//default constructor
Seller::Seller()
{
name[0]='\0';
}
//Constructor
Seller::Seller(char newName[], double newTotal)
{
strcpy(name,newName);
salesTotal=newTotal;
}
//getName
char* Seller::getName()
{
return name;
}
對於我為什么收到此錯誤以及如何解決它的任何幫助,將不勝感激。
salesPerson
是char
類型的數組,因此沒有print()
成員。 請嘗試:
Seller salesPerson[30]; // was char salesPerson[30]
你有:
char salesPerson[30];
int numSellers;
也許您的意思是:
std::vector<Seller> salesPerson;
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