Where can we find example(s) of implementation code in a programming language of Quantum Error Correction, whether with the standard method of measurement or the automatic method without measurement (with control operators) ?
Maybe this is something you are looking for:
Benchmarking near-term devices with quantum error correction by James Wootton
A nice place to look is always the qiskit textbook!
Videos 13 14 and 15 are for QEC. But, you can watch the playlist for more reference