c#/vb.net 提取 word 表格中的图片-ag凯发旗舰厅

word文档的正文和表格中都可以包含图片，我们已经介绍过如何，这篇文章将介绍如何提取表格中的图片。

原文档如下：

using system;
using spire.doc;
using spire.doc.documents;
using spire.doc.fields;
namespace extract_images_from_tables_in_word
{
    class program
    {
        static void main(string[] args)
        {
            //创建document实例
            document doc = new document();
            //加载word文档
            doc.loadfromfile("sample.docx");
            //获取文档中第一个节
            section section = doc.sections[0];
            //调用extractimagesfromtables方法，提取表格中的图片
            extractimagesfromtables(section);
            //关闭
            doc.close();
        }
        //创建静态方法extractimagesfromtables，参数为section对象
        static void extractimagesfromtables(section section)
        {
            int index = 0;
            string imagename = null;
            //遍历section中的表格，提取表格中的图片并保存到本地
            foreach (table table in section.tables)
            {
                for (int i = 0; i < table.rows.count; i  )
                {
                    for (int j = 0; j < table.rows[i].cells.count; j  )
                    {
                        foreach (paragraph para in table[i, j].paragraphs)
                        {
                            foreach (documentobject obj in para.childobjects)
                            {
                                if (obj is docpicture)
                                {
                                    imagename = string.format(@"images\tableimage-{0}.png", index);
                                    (obj as docpicture).image.save(imagename, system.drawing.imaging.imageformat.png);
                                    index  ;
                                }
                            }
                        }
                    }
                }
            }
        }
    }
}

imports system
imports spire.doc
imports spire.doc.documents
imports spire.doc.fields
namespace extract_images_from_tables_in_word
    
    class program
        
        private shared sub main(byval args() as string)
            '创建document实例
            dim doc as document = new document
            '加载word文档
            doc.loadfromfile("sample.docx")
            '获取文档中第一个节
            dim section as section = doc.sections(0)
            '调用extractimagesfromtables方法，提取表格中的图片
            program.extractimagesfromtables(section)
            '关闭
            doc.close
        end sub
        
        '创建静态方法extractimagesfromtables，参数为section对象
        private shared sub extractimagesfromtables(byval section as section)
            dim index as integer = 0
            dim imagename as string = nothing
            '遍历section中的表格，提取表格中的图片并保存到本地
            for each table as table in section.tables
                dim i as integer = 0
                do while (i < table.rows.count)
                    dim j as integer = 0
                    do while (j < table.rows(i).cells.count)
                        for each para as paragraph in table(i, j).paragraphs
                            for each obj as documentobject in para.childobjects
                                if (typeof obj is docpicture) then
                                    imagename = string.format("images\tableimage-{0}.png", index)
                                    ctype(obj,docpicture).image.save(imagename, system.drawing.imaging.imageformat.png)
                                    index = (index   1)
                                end if
                                
                            next
                        next
                        j = (j   1)
                    loop
                    
                    i = (i   1)
                loop
                
            next
        end sub
    end class
end namespace

效果图：