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这篇文章主要介绍Excel处理库-libxlsxwriter配置使用。
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文章目录
- :smirk:1. 项目介绍
- :blush:2. 环境配置
- :satisfied:3. 使用说明
😏1. 项目介绍
项目Github地址:https://github.com/jmcnamara/libxlsxwriter
Wiki地址:https://libxlsxwriter.github.io/
libxlsxwriter 是一个用于创建 Microsoft Excel XLSX 文件的C库。它提供了一系列功能,可以让您通过编程方式生成包含单元格、图表、格式化等内容的 Excel 文件。下面是 libxlsxwriter 的一些特点和功能:
1.跨平台性:libxlsxwriter 可以在多个操作系统上工作,包括 Linux、macOS 和 Windows。
2.创建 XLSX 文档:它允许您创建 XLSX 格式的 Excel 文档,支持 Excel 2007 及更高版本。
3.丰富的功能:libxlsxwriter 支持创建工作表、单元格、公式、图表、条件格式化、数据筛选等功能。
4.高性能:该库被设计为具有高性能,在大型数据集的情况下生成速度快。
5.支持多种格式和样式:您可以设置单元格的格式、字体、颜色、边框、背景等属性,以及应用数值格式、日期格式、公式和函数等。
6.支持图表:libxlsxwriter 允许您创建各种 Excel 图表,如条形图、饼图、折线图等,并支持自定义图表的样式和属性。
但是要注意,libxlsxwriter
只能用于创建 XLSX 文件,不支持读取或修改现有的 Excel 文件。(可以通过c++自带的文件处理来读取,处理后的数据再手动导入到最后的表中)
😊2. 环境配置
下面进行环境配置:
# 安装依赖
sudo apt-get install libxslt-dev
# 下载源码
git clone https://github.com/jmcnamara/libxlsxwriter
# 编译
cd libxlsxwriter
make
sudo cp lib/libxlsxwriter.so.5 /usr/lib/libxlsxwriter.so.5
cd cmake
cmake ..
make
sudo make install
编译运行:
g++ -o main main.cpp -lxlsxwriter && ./main
😆3. 使用说明
下面进行使用分析:
创建excel并写入示例:
#include "xlsxwriter.h"int main() {/* Create a new workbook and add a worksheet. */lxw_workbook *workbook = workbook_new("demo.xlsx");lxw_worksheet *worksheet = workbook_add_worksheet(workbook, NULL);/* Add a format. */lxw_format *format = workbook_add_format(workbook);/* Set the bold property for the format */format_set_bold(format);/* Change the column width for clarity. */worksheet_set_column(worksheet, 0, 0, 20, NULL);/* Write some simple text. */worksheet_write_string(worksheet, 0, 0, "Hello", NULL);/* Text with formatting. */worksheet_write_string(worksheet, 1, 0, "World", format);/* Write some numbers. */worksheet_write_number(worksheet, 2, 0, 123, NULL);worksheet_write_number(worksheet, 3, 0, 123.456, NULL);/* Insert an image. */worksheet_insert_image(worksheet, 1, 2, "logo.png");workbook_close(workbook);return 0;
}
参考某博主,生成指定个数的uuid示例:
#include <chrono>
#include <condition_variable>
#include <ctime>
#include <curl/curl.h>
#include <curl/easy.h>
#include <fstream>
#include <functional>
#include <future>
#include <iostream>
#include <iomanip>
#include <map>
#include <memory>
#include <mutex>
#include <random>
#include <stdio.h>
#include <string>
#include <uuid/uuid.h>
#include <vector>
#include "xlsxwriter.h"// ref: https://www.cnblogs.com/Fred1987/p/17442487.html
// 编译: g++ -o main main.cpp -lxlsxwriter -luuid -lpthread && ./mainstd::string get_time_now(bool is_exact = false)
{std::chrono::time_point<std::chrono::high_resolution_clock> now = std::chrono::high_resolution_clock::now();time_t raw_time = std::chrono::high_resolution_clock::to_time_t(now);struct tm tm_info = *localtime(&raw_time);std::stringstream ss;ss << std::put_time(&tm_info, "%Y%m%d%H%M%S");if (is_exact){std::chrono::seconds seconds = std::chrono::duration_cast<std::chrono::seconds>(now.time_since_epoch());std::chrono::milliseconds mills = std::chrono::duration_cast<std::chrono::milliseconds>(now.time_since_epoch());std::chrono::microseconds micros = std::chrono::duration_cast<std::chrono::microseconds>(now.time_since_epoch());std::chrono::nanoseconds nanos = std::chrono::duration_cast<std::chrono::nanoseconds>(now.time_since_epoch());std::uint64_t mills_count = mills.count() - seconds.count() * 1000;std::uint64_t micros_count = micros.count() - mills.count() * 1000;std::uint64_t nanos_count = nanos.count() - micros.count() * 1000;ss << "_" << std::setw(3) << std::setfill('0') << std::to_string(mills_count)<< std::setw(3) << std::setfill('0') << std::to_string(micros_count)<< std::setw(3) << std::setfill('0') << std::to_string(nanos_count);}return ss.str();
}// generate uuid
char *uuid_value = (char *)malloc(40);
char *get_uuid_value()
{uuid_t new_uuid;uuid_generate(new_uuid);uuid_unparse(new_uuid, uuid_value);return uuid_value;
}void xlsxwriter_excel(const int &len)
{lxw_workbook *workbook = workbook_new("uuid.xlsx");lxw_worksheet *worksheet = workbook_add_worksheet(workbook, NULL);worksheet_set_column(worksheet,0,0,50,NULL); // 设置列宽// write headerworksheet_write_string(worksheet, 0, 0, "Header", NULL);worksheet_write_string(worksheet, 0, 1, "Number", NULL);for (int row = 1; row <= len; row++){worksheet_write_string(worksheet, row, 0, get_uuid_value(), NULL);worksheet_write_number(worksheet, row, 1, row, NULL);}workbook_close(workbook);std::cout << get_time_now(true) << ",finish in " << __FUNCTION__ << std::endl;
}int main(int agrs,char **argv)
{xlsxwriter_excel(atoi(argv[1])); // 读取命令行,生成几个uuidreturn 0;
}
结合CGAL计算几何库对txt点集进行处理,并处理后的数据写入xlsx,示例:
#include <iostream>
#include <fstream>
#include <vector>
#include "xlsxwriter.h"
#include <CGAL/Exact_predicates_inexact_constructions_kernel.h>
#include <CGAL/Alpha_shape_2.h>typedef CGAL::Exact_predicates_inexact_constructions_kernel K;
typedef K::Point_2 Point_2;// 编译: g++ -o main main.cpp -lxlsxwriter -lCGAL -lgmp && ./mainint main() {// 1. 从文本文件中读取 XY 点集std::ifstream inputFile("input.txt");if (!inputFile) {std::cout << "Failed to open input file." << std::endl;return 1;}std::vector<Point_2> points;double x, y;while (inputFile >> x >> y) {points.push_back(Point_2(x, y));}inputFile.close();// ...// 2. 将处理后的点集写入 xlsx 文件中lxw_workbook* workbook = workbook_new("output.xlsx");lxw_worksheet* worksheet = workbook_add_worksheet(workbook, NULL);int row = 0;for (const Point_2& point : points) {int col = 0;worksheet_write_number(worksheet, row, col++, CGAL::to_double(point.x()), NULL);worksheet_write_number(worksheet, row, col, CGAL::to_double(point.y()), NULL);row++;}workbook_close(workbook);std::cout << "Output file has been generated." << std::endl;return 0;
}
以上。