Go语言学习——如何操作Excel

1、下载第三方包github.com/xuri/excelize
打开https://www.golangtc.com/download/package，在下图黄色区域输入完整包名，点击Go！如果地址正确，则会出现下载地址，点击下载地址下方的黄色区域，包就会被下载。

2、使用例子
2.1创建xlsx

package main
import (
    "fmt"
    "github.com/xuri/excelize"
)
func main() {
    xlsx := excelize.NewFile()
    // Create a new sheet.
    index := xlsx.NewSheet("Sheet2")
    // Set value of a cell.
    xlsx.SetCellValue("Sheet2", "A2", "Hello world.")
    xlsx.SetCellValue("Sheet1", "B2", 100)
    // Set active sheet of the workbook.
    xlsx.SetActiveSheet(index)
    // Save xlsx file by the given path.
    err := xlsx.SaveAs("./Workbook.xlsx")
    if err != nil {
        fmt.Println(err)
    }
}

2.2 读写已有文档

package main
import (
    "fmt"
    "github.com/xuri/excelize"
)
func main() {
    xlsx, err := excelize.OpenFile("./Workbook.xlsx")
    if err != nil {
        fmt.Println(err)
        return
    }
    // Get value from cell by given worksheet name and axis.
    cell := xlsx.GetCellValue("Sheet1", "B2")
    fmt.Println(cell)
    // Get all the rows in the Sheet1.
    rows := xlsx.GetRows("Sheet1")
    for _, row := range rows {
        for _, colCell := range row {
            fmt.Print(colCell, "\t")
        }
        fmt.Println()
    }
}

2.3 向Excel中插入图表

package main
    import (
        "fmt"
        "github.com/xuri/excelize"
    )
    func main() {
        categories := map[string]string{"A2": "Small", "A3": "Normal", "A4": "Large", "B1": "Apple", "C1": "Orange", "D1": "Pear"}
        values := map[string]int{"B2": 2, "C2": 3, "D2": 3, "B3": 5, "C3": 2, "D3": 4, "B4": 6, "C4": 7, "D4": 8}
        xlsx := excelize.NewFile()
        for k, v := range categories {
            xlsx.SetCellValue("Sheet1", k, v)
        }
        for k, v := range values {
            xlsx.SetCellValue("Sheet1", k, v)
        }
        xlsx.AddChart("Sheet1", "E1", `{"type":"bar3D","series":[{"name":"=Sheet1!$A$2","categories":"=Sheet1!$B$1:$D$1","values":"=Sheet1!$B$2:$D$2"},{"name":"=Sheet1!$A$3","categories":"=Sheet1!$B$1:$D$1","values":"=Sheet1!$B$3:$D$3"},{"name":"=Sheet1!$A$4","categories":"=Sheet1!$B$1:$D$1","values":"=Sheet1!$B$4:$D$4"}],"title":{"name":"Fruit 3D Line Chart"}}`)
        // Save xlsx file by the given path.
        err := xlsx.SaveAs("./Workbook.xlsx")
        if err != nil {
            fmt.Println(err)
        }
    }

2.4 向Excel中插入图片

package main
    import (
        "fmt"
        _ "image/gif"
        _ "image/jpeg"
        _ "image/png"
        "github.com/xuri/excelize"
    )
    func main() {
        xlsx, err := excelize.OpenFile("./Workbook.xlsx")
        if err != nil {
            fmt.Println(err)
            return
        }
        // Insert a picture.
        err = xlsx.AddPicture("Sheet1", "A2", "./image1.png", "")
        if err != nil {
            fmt.Println(err)
        }
        // Insert a picture to worksheet with scaling.
        err = xlsx.AddPicture("Sheet1", "D2", "./image2.jpg", `{"x_scale": 0.5, "y_scale": 0.5}`)
        if err != nil {
            fmt.Println(err)
        }
        // Insert a picture offset in the cell with printing support.
        err = xlsx.AddPicture("Sheet1", "H2", "./image3.gif", `{"x_offset": 15, "y_offset": 10, "print_obj": true, "lock_aspect_ratio": false, "locked": false}`)
        if err != nil {
            fmt.Println(err)
        }
        // Save the xlsx file with the origin path.
        err = xlsx.Save()//不要忘记保存，否则图片插入不了。
        if err != nil {
            fmt.Println(err)
        }
    }