gin实现文件下载

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func FileDownload(c *gin.Context){     //c.Writer.Header().Add("Content-Disposition", fmt.Sprintf("attachment; filename=%s", "test"))//fmt.Sprintf("attachment; filename=%s", filename)对下载的文件重命名     //c.Writer.Header().Add("Content-Type", "application/octet-stream")     c.File("F:/go/demo/employ/files/5cdc28916a707.doc") }