How Do I Install a Library That C++ Depends on?

A third-party library may be used during job training. The following uses C++ as an example to describe how to install a third-party library.

Download source code to a local PC and upload it to OBS. For details about how to upload a file using OBS Browser, see Uploading a File.
Use MoXing to copy the source code uploaded to OBS to a notebook instance in the development environment.
The following is a code example for copying data to a notebook instance in a development environment running on an EVS:
```
import moxing as mox
mox.file.make_dirs('/home/ma-user/work/data')
mox.file.copy_parallel('obs://bucket-name/data', '/home/ma-user/work/data')
```
On the Files tab page of the Jupyter page, click New and select Terminal. Run the following command to go to the target path, and check whether the source code has been downloaded, that is, whether the data file exists.
```
cd /home/ma-user/work
ls
```
Compile code in Terminal based on service requirements.

Use MoXing to copy the compilation results to OBS. The following is a code example.

import moxing as mox
mox.file.make_dirs('/home/ma-user/work/data')
mox.file.copy_parallel('/home/ma-user/work/data', 'obs://bucket-name/file)

During training, use MoXing to copy the compilation result from OBS to the container. The following is a code example.

import moxing as mox
mox.file.make_dirs('/cache/data')
mox.file.copy_parallel('obs://bucket-name/data', '/cache/data')

Parent topic: Compiling the Training Code

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