非类类型"char"的成员打印的错误请求

Error request for member print which is of non-class type 'char'

本文关键字:打印 错误 请求 成员 char 类型      更新时间:2023-10-16

每次我尝试运行打印函数时,它都会告诉我:

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();
               ^

我似乎不知道如何解决这个问题。我包含了所有需要的代码。如果还需要,请告诉我。

SalesDB.h

#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();
  }
}

Seller.h

 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]='';
}
    //Constructor
Seller::Seller(char newName[], double newTotal)
{
strcpy(name,newName);
salesTotal=newTotal;
}
   //getName
char* Seller::getName()
{
return name;
}

任何帮助,为什么我得到这个错误和如何修复它将非常感激。

salesPerson是类型为char的数组,因此没有print()成员。试试相反:

Seller salesPerson[30];  // was char salesPerson[30]

你有:

char salesPerson[30];
int numSellers;

也许你的意思是:

std::vector<Seller> salesPerson;