发布:2023/3/22 16:09:06作者:管理员 来源:本站 浏览次数:485
一个excel形状可以用文字或图像填充,有时我们需要读取形状中的文字和图像信息。 在本文中,我们将介绍如何使用Spire.XLS和C#从Excel中的形状中提取文本和图像。
以下是我们用于演示的示例文档的屏幕截图:
详细步骤:
Step 1: 初始化Workbook类的对象并加载Excel文件。
Workbook workbook = new Workbook();
workbook.LoadFromFile("Input.xlsx");
Step 2: 获取第一张工作表。
Worksheet sheet = workbook.Worksheets[0];
Step 3: 从第一个形状中提取文本并保存到txt文件。
IPrstGeomShape shape1 = sheet.PrstGeomShapes[0];
string s = shape1.Text;
StringBuilder sb = new StringBuilder();
sb.AppendLine(s);
File.WriteAllText("ShapeText.txt", sb.ToString());
Step 4: 从第二个形状中提取图像并保存到本地文件夹。
IPrstGeomShape shape2 = sheet.PrstGeomShapes[1];
Image image = shape2.Fill.Picture;
image.Save(@"Image\ShapeImage.png", ImageFormat.Png);
截图:
提取的文本:
提取的图像:
完整代码:
using System.Drawing;
using System.Drawing.Imaging;
using System.IO;
using System.Text;
using Spire.Xls;
using Spire.Xls.Core;
namespace Extract_text_and_image_from_Excel_shape
{
class Program
{
static void Main(string[] args)
{
//Load the Excel file
Workbook workbook = new Workbook();
workbook.LoadFromFile("Input.xlsx");
//Get the first worksheet
Worksheet sheet = workbook.Worksheets[0];
//Extract text from the first shape and save to a txt file
IPrstGeomShape shape1 = sheet.PrstGeomShapes[0];
string s = shape1.Text;
StringBuilder sb = new StringBuilder();
sb.AppendLine(s);
File.WriteAllText("ShapeText.txt", sb.ToString());
//Extract image from the second shape and save to a local folder
IPrstGeomShape shape2 = sheet.PrstGeomShapes[1];
Image image = shape2.Fill.Picture;
image.Save(@"Image\ShapeImage.png", ImageFormat.Png);
}
}
}
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