Modified and updated numerical experiments to "Error analysis of the Strang s...

This program is intended to reproduce the results from the preprint "Error analysis of the Strang splitting for the 3D semilinear wave equation with finite-energy data" by...本程序旨在复现由……所撰写的预印本《带有限能量数据的三维半线性波动方程的Strang分裂（Strang splitting）误差分析》中的研究结果。