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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
😏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sudoapt-getinstall libxslt-dev
# 下载源码git clone https://github.com/jmcnamara/libxlsxwriter
# 编译cd libxlsxwriter
makesudocp lib/libxlsxwriter.so.5 /usr/lib/libxlsxwriter.so.5
cd cmake
cmake ..makesudomakeinstall
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"intmain(){/* 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);return0;}
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 && ./main
std::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);structtm 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 uuidchar*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;}voidxlsxwriter_excel(constint&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;}intmain(int agrs,char**argv){xlsxwriter_excel(atoi(argv[1]));// 读取命令行,生成几个uuidreturn0;}
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 && ./mainintmain(){// 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;return1;}
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;return0;}
以上。
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