tar.gz是一种我们日常生活中不常见到的压缩包形式，这种压缩包一般要比较专业的人才能使用到，那我们要怎样才能解压这种压缩包呢？下面是解压的操作：
一台电脑
首先，我们要下载一个360压缩，然后在桌面上将它安装
然后找到我们要解压的文件，鼠标右键单击文件，在跳出来的命令种选择“解压到当前文件夹”
然后360压缩会自动解压安装包，等待一段时间就会自动解压好了
解压好的文件将会以文件夹的形式出现在桌面上
压缩与解压tar.gz-golang
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努力的gopher
我们在平时经常用到 tar.gz 的解压与压缩，使用命令行大家都了解，tar -zcvf 与 tar -xvf 。今天我把我用go语言实现的压缩解压写下来，大家如果用到可以收藏下来，以后避免重复造轮子，个人觉得这个很值得在自己本地或者项目中保存起来，当作一个lib使用。不多说，下面是代码实现，本人目前也在用这个代码，还没有发现bug，如果有人发现bug请留言。
package fsimport ( "archive/tar" "compress/gzip" "errors" "io" "os" "path" "path/filepath")// UnTarGz takes a destination path and a reader; a tar reader loops over the tar.gz file// creating the file structure at 'dst' along the way, and writing any filesfunc UnTarGz(dst string, r io.Reader) error { gzr, err := gzip.NewReader(r) if err != nil { return err } defer func() { if e := gzr.Close(); e != nil { return } }() tr := tar.NewReader(gzr) for { Header, err := tr.Next() switch { // if no more files are found return case err == io.EOF: return nil // return any other error case err != nil: return err // if the header is nil, just skip it (not sure how this happens) case header == nil: continue } // the target location where the dir/file should be created target := filepath.Join(dst, header.Name) // the following switch could also be done using fi.Mode(), not sure if there // a benefit of using one vs. the other. // fi := header.FileInfo() // check the file type switch header.Typeflag { // if its a dir and it doesn't exist create it case tar.TypeDir: if _, err := os.Stat(target); err != nil { if err := os.MkdirAll(target, 0750); err != nil { return err } } // if it's a file create it case tar.TypeReg: f, err := os.OpenFile(target, os.O_CREATE|os.O_RDWR, os.FileMode(header.Mode)) if err != nil { return err } // copy over contents if _, err = io.Copy(f, tr); err != nil { return err } // manually close here after each file operation; defering would cause each file close // to wait until all operations have completed. if err = f.Close(); err != nil { return err } } }}// TarGz tar for srcPath and create destFile// flag = 0,not contains srcPath dir, flag = 1, contains srcPathfunc TarGz(srcPath string, destFile string, flag int) error { fw, err := os.Create(destFile) if err != nil { return err } defer fw.Close() // Gzip writer gw := gzip.NewWriter(fw) defer gw.Close() // Tar writer tw := tar.NewWriter(gw) defer tw.Close() // Check if it's a file or a directory f, err := os.Open(srcPath) if err != nil { return err } fi, err := f.Stat() if err != nil { return err } if fi.IsDir() { // handle source directory if flag == 0 { err := tarGzDir(srcPath, path.Base(""), tw) if err != nil { return err } } else if flag == 1 { err := tarGzFile(srcPath, path.Base(srcPath), tw, fi) if err != nil { return err } err = tarGzDir(srcPath, path.Base(srcPath), tw) if err != nil { return err } } else { return errors.New("Invlaid flag") } } else { // handle file directly if flag == 0 { err := tarGzFile(srcPath, path.Base(""), tw, fi) if err != nil { return err } } else if flag == 1 { err := tarGzFile(srcPath, path.Base(srcPath), tw, fi) if err != nil { return err } } else { return errors.New("Invlaid flag") } } return nil}func tarGzDir(srcDir string, recPath string, tw *tar.Writer) error { // Open source diretory dir, err := os.Open(srcDir) if err != nil { return err } defer dir.Close() // Get file info slice fis, err := dir.Readdir(0) if err != nil { return err } for _, fi := range fis { // Append path curPath := srcDir "/" fi.Name() err := tarGzFile(curPath, recPath "/" fi.Name(), tw, fi) if err != nil { return err } // Check it is directory or file if fi.IsDir() { // Directory // (Directory won't add unitl all subfiles are added) err := tarGzDir(curPath, recPath "/" fi.Name(), tw) if err != nil { return err } } } return nil}func tarGzFile(srcFile string, recPath string, tw *tar.Writer, fi os.FileInfo) error { if fi.IsDir() { // Create tar header hdr := new(tar.Header) // if last character of header name is '/' it also can be directory // but if you don't set Typeflag, error will occur when you untargz hdr.Name = recPath "/" hdr.Typeflag = tar.TypeDir hdr.Size = 0 hdr.Mode = int64(fi.Mode()) hdr.ModTime = fi.ModTime() // Write hander err := tw.WriteHeader(hdr) if err != nil { return err } } else { // File reader fr, err := os.Open(srcFile) if err != nil { return err } defer fr.Close() // Create tar header hdr := new(tar.Header) hdr.Typeflag = tar.TypeReg hdr.Name = recPath hdr.Size = fi.Size() hdr.Mode = int64(fi.Mode()) hdr.ModTime = fi.ModTime() // Write hander err = tw.WriteHeader(hdr) if err != nil { return err } // Write file data _, err = io.Copy(tw, fr) if err != nil { return err } } return nil}
