帮我用vs2008,c++写一段代码,目的是解压1.tar.gz压缩包
时间: 2024-03-03 10:53:43 浏览: 21
好的,以下是使用 zlib 库解压 tar.gz 文件的 C++ 代码,请注意需要安装 zlib 库并添加相关头文件和库文件:
```c++
#include <iostream>
#include <fstream>
#include <zlib.h>
#include <cstring>
#include <cstdio>
#define CHUNK_SIZE 16384
int main()
{
const std::string filename = "1.tar.gz";
gzFile gzfile = gzopen(filename.c_str(), "rb");
if (gzfile == NULL)
{
std::cerr << "Error: Unable to open file " << filename << std::endl;
return EXIT_FAILURE;
}
const std::string outfilename = "1.tar";
std::ofstream outfile(outfilename.c_str(), std::ios_base::binary);
if (!outfile.is_open())
{
std::cerr << "Error: Unable to create file " << outfilename << std::endl;
gzclose(gzfile);
return EXIT_FAILURE;
}
char buffer[CHUNK_SIZE];
int uncompressed_size, ret;
do
{
uncompressed_size = 0;
ret = gzread(gzfile, buffer, CHUNK_SIZE);
if (ret < 0)
{
std::cerr << "Error: Unable to read from file " << filename << std::endl;
gzclose(gzfile);
outfile.close();
std::remove(outfilename.c_str());
return EXIT_FAILURE;
}
else if (ret > 0)
{
uncompressed_size = ret;
outfile.write(buffer, ret);
}
} while (ret > 0);
gzclose(gzfile);
outfile.close();
std::cout << "File " << filename << " has been successfully decompressed to " << outfilename << std::endl;
return EXIT_SUCCESS;
}
```
这段代码可以将 "1.tar.gz" 文件解压缩为 "1.tar" 文件。您可以根据实际情况修改文件名和路径。