如何使用C++處理網(wǎng)格數(shù)據(jù)的輸入輸出

在C++中處理網(wǎng)格數(shù)據(jù)的輸入輸出，通常需要使用二維數(shù)組或者std::vector

1. 讀取網(wǎng)格數(shù)據(jù)：

#include<iostream>
#include <fstream>
#include<vector>

int main() {
    std::ifstream input_file("grid_data.txt");
    int rows, cols;
    input_file >> rows >> cols;

    std::vector<std::vector<int>> grid(rows, std::vector<int>(cols));

    for (int i = 0; i< rows; ++i) {
        for (int j = 0; j< cols; ++j) {
            input_file >> grid[i][j];
        }
    }

    input_file.close();

    // 處理網(wǎng)格數(shù)據(jù)...

    return 0;
}

2. 寫入網(wǎng)格數(shù)據(jù)：

#include<iostream>
#include <fstream>
#include<vector>

int main() {
    int rows = 3, cols = 4;
    std::vector<std::vector<int>> grid = {
        {1, 2, 3, 4},
        {5, 6, 7, 8},
        {9, 10, 11, 12}
    };

    std::ofstream output_file("grid_data_output.txt");
    output_file<< rows << " "<< cols << "\n";

    for (int i = 0; i< rows; ++i) {
        for (int j = 0; j< cols; ++j) {
            output_file<< grid[i][j] << " ";
        }
        output_file << "\n";
    }

    output_file.close();

    return 0;
}

這兩個(gè)示例分別展示了如何從文件中讀取網(wǎng)格數(shù)據(jù)以及將網(wǎng)格數(shù)據(jù)寫入文件。你可以根據(jù)實(shí)際需求對(duì)這些代碼進(jìn)行修改和擴(kuò)展。