CMake项目中使用libxlsxwriter库_如何安装libxlsxwriter库

引入libxlsxwriter库

1.在github上下载源码：https://github.com/jmcnamara/libxlsxwriter

2.解压后放入项目中

3. 编写CMakeLists.txt

   file(GLOB SRC "*.cpp")
   message(STATUS "SRC: ${SRC}")
   
   set(TARGET exportXlsx)
   
   # 将libxlsxwriter库作为子文件夹引入项目
   add_subdirectory(libxlsxwriter)
   
   # 设置xlsx的导出目录
   set(CMAKE_RUNTIME_OUTPUT_DIRECTORY ${EMS_ROOT}/xlsx)
   message(STATUS "CMAKE_RUNTIME_OUTPUT_DIRECTORY: ${CMAKE_RUNTIME_OUTPUT_DIRECTORY}")
   
   # 添加可执行文件
   add_executable(${TARGET} ${SRC})
   
   set(XLSX_INCLUDE_DIRS "${CMAKE_CURRENT_SOURCE_DIR}/libxlsxwriter/include/")
   message(STATUS "XLSX_INCLUDE_DIRS: ${XLSX_INCLUDE_DIRS}")
   
   # 链接库头文件目录
   target_include_directories(${TARGET} PUBLIC ${XLSX_INCLUDE_DIRS})
   
   # 链接库
   target_link_libraries(${TARGET} PUBLIC xlsxwriter)
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使用libxlsxwriter库

1. 新建xlsx文件，并设置格式

   lxw_workbook* workbook = workbook_new("test.xlsx");
   lxw_worksheet* worksheet = workbook_add_worksheet(workbook, NULL);
   lxw_format* format = workbook_add_format(workbook);
   // 设置水平对齐方式为居中
   format_set_align(format, LXW_ALIGN_CENTER);
   // 设置垂直对齐方式为居中
   format_set_align(format, LXW_ALIGN_VERTICAL_CENTER);
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2. 设置单元格的宽度和格式

   // 设置 startCol-endCol 列的宽度和格式
   int startCol=1,endCol=10;
   worksheet_set_column(worksheet, startCol, endCol, 20, format);
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3. 将数据写入单元格

   // 写入string类型到第0行第0列单元格
   std::string str = "Hello";
   worksheet_write_string(worksheet, 0, 0, str.c_str(), NULL);
   
   // 将数字类型写入单元格，支持整型和浮点型
   worksheet_write_number(worksheet, 2, 0, 123,     NULL);
   worksheet_write_number(worksheet, 3, 0, 123.456, NULL);
   
   // 单元格里设置图片
   worksheet_insert_image(worksheet, 1, 2, "logo.png");
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4. 合并单元格

   // 合并第0行 col-col2 列的单元格，设置值为"哈哈"
   worksheet_merge_range(worksheet, 0, col1, 0, col2, "哈哈", format);
   
   // 合并第0列的 row1 ~ row2 行的单元格，设为日期
   worksheet_merge_range(worksheet, row1, 0, row2, 0, "日期", this->format);
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5. 关闭workbook

   // 使用完后需要关闭
   workbook_close(this->workbook);
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