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HomeBackend DevelopmentGolangGolang implements office

Golang is a high-performance, distributed, and concurrent programming language that can be used to develop various types of applications. In a corporate environment, many companies use Microsoft Office to create and edit documents, spreadsheets, presentations, and other documents. However, Microsoft Office is commercial software and requires payment to use. So, is there an open source alternative?

In this article, we will explore how to implement an application similar to Microsoft Office using Golang. We'll cover how to use Golang to create and edit documents, spreadsheets, and presentations, as well as how to save them in different file formats.

1. Implement the Word document editor

First, we will implement an editor that can create and edit Word documents. This editor will use Golang's third-party library to read and write Word document files. We use the following code to import the relevant libraries:

import (
    "fmt"
    "github.com/unidoc/unioffice/document"
)

Next, we can open a Word document using the following code:

doc, err := document.Open("document.docx")
if err != nil {
    fmt.Println(err.Error())
    return
}

Now, we can start editing the document. We can use the following code to read all paragraphs in the document:

for _, p := range doc.Paragraphs() {
    fmt.Println(p.Text())
}

To add a new paragraph in the document, we can use the following code:

p := doc.AddParagraph()
t := p.AddRun()
t.AddText("Hello, World!")

Add styles and formatting:

style := doc.StyleByName(document.StyleTypeDefault)
p.SetStyle(style)

t := p.AddRun()
t.Properties().SetItalic(true)
t.AddText("Hello, World!")

Finally, we can use the following code to save the modified Word document as a new file:

doc.SaveToFile("new_doc.docx")

2. Implement the Excel spreadsheet editor

Next, we will implement An Excel spreadsheet editor. This editor will use Golang's third-party libraries to read and write Excel files. We use the following code to import the relevant libraries:

import (
    "fmt"
    "github.com/tealeg/xlsx"
)

Next, we can open an Excel file using the following code:

xlsxFile, err := xlsx.OpenFile("file.xlsx")
if err != nil {
    fmt.Println(err.Error())
    return
}

Now, we can start editing the spreadsheet. We can use the following code to read all cells in all worksheets:

for _, sheet := range xlsxFile.Sheets {
    for _, row := range sheet.Rows {
        for _, cell := range row.Cells {
            fmt.Println(cell.String())
        }
    }
}

To add a new cell in the spreadsheet, we can use the following code:

row := sheet.AddRow()
cell := row.AddCell()
cell.SetValue("Hello, World!")

Add format And style:

cell := row.AddCell()
cell.SetStyle(style)
cell.SetValue("Hello, World!")

Finally, we can use the following code to save the modified Excel file as a new file:

xlsxFile.Save("new_file.xlsx")

3. Implement the PowerPoint presentation editor

Finally , we will implement an editor that can create and edit PowerPoint presentations. This editor will use Golang's third-party library to read and write PowerPoint files. We use the following code to import the relevant libraries:

import (
    "fmt"
    "github.com/umpc/go-sld"
    "github.com/umpc/go-sld/opts"
)

Next, we can open a PowerPoint file using the following code:

presentation, err := sld.Open("presentation.pptx")
if err != nil {
    fmt.Println(err.Error())
    return
}

Now, we can start editing the presentation. We can create a new slide and add some text to it using the following code:

slide, err := presentation.NewSlideWithLayout(opts.Custom) // 创建新幻灯片
if err != nil {
    fmt.Println(err.Error())
    return
}

textbox := slide.NewTextboxWithSize("Hello, World!", 100, 100, 250, 100) // 添加文本框
textbox.Properties().SetFont("Arial", 36) // 修改字体

Finally, we can save the modified PowerPoint file as a new file using the following code:

presentation.Save("new_presentation.pptx")

Conclusion

By using Golang’s third-party libraries, we can easily implement an application similar to Microsoft Office. We can use Golang to create and edit Word documents, Excel spreadsheets, and PowerPoint presentations and save them in different file formats. By using these libraries, we can quickly develop high-performance and distributed applications that can handle large amounts of documents and data.

Of course, this is just a demonstration version implementation. Compared with Microsoft Office, there are still many shortcomings, such as interface design, more complete functions, etc. But this article enlightens us that Golang, an efficient programming language, can be used to develop various types of applications, whether it is commercial software or open source projects.

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