我正在尝试编写数独程序。数独程序可以正常运行我的输入文件,但我想做一些改变,通过编译器输入文件。出现了错误,如“没有匹配的成员函数可调用 'open'”。这只是我程序的一部分,因为我认为我的问题在于I/O文件。任何帮助都将不胜感激!谢谢!
#include <iostream>
#include <cstdio>
#include <cstring>
#include <cstdlib>
#include <fstream>
#include <string>
using namespace std;
int main()
{
char filename;
ifstream myfile;
//int row,column;
int choice;
cout << "Enter the desired sudoku 4 for (4x4) or 9 for (9x9) : \n";
cin >> choice;
if(choice == 9) {
for(int row = 0; row < 9; row++) // iterating the loop to assign initial dummy values
{
for(int column = 0; column < 9; column++)
{
sudoku[row][column] = 0; // assigining zeros
}
}
cout << "Enter the filename:" << endl;
cin >> filename;
myfile.open(filename); // opening the file mentioned
cout << "The values in the file are :" << endl;
if (myfile.is_open())
{
while (!myfile.eof())
{
for(int row = 0; row < 9; row++) // iterating the loope to get the values form the file
{
for(int column = 0; column < 9; column++)
{
myfile >> sudoku[row][column]; // assigning the values to the grid
cout << sudoku[row][column] << endl; // printing the grid
}
}
}
}
myfile.close(); // closing the file
solvesudoku(0,0);//We start solving the sudoku.
}
else if(choice == 4) {
for(int row = 0; row < 4; row++) // iterating the loop to assign initial dummy values
{
for(int column = 0; column < 4; column++)
{
sudoku1[row][column] = 0; // assigining zeros
}
}
cout << "Enter the filename:" << endl;
cin >> filename;
myfile.open(filename); // opening the file mentioned
cout << "The values in the file are :" << endl;
if (myfile.is_open())
{
while (!myfile.eof())
{
for(int row = 0; row < 4; row++) // iterating the loope to get the values form the file
{
for(int column = 0; column < 4; column++)
{
myfile >> sudoku1[row][column]; // assigning the values to the grid
cout << sudoku1[row][column] << endl; // printing the grid
}
}
}
}
myfile.close(); // closing the file
solsudoku(0,0);//We start solving the sudoku.
}
else {
cout << "Invalid Choice..!!!";
}
return 0;
}
#include<fstream>
吗? - Assimilater