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应用数值方法研究了日冕多层电流片中电阻撕裂模不稳定性的非线性演化和磁场重联过程，结果表明，计算区域顶部附近两侧电流片中的磁岛和等离子体团向上抛射，并携出大量的磁能和热能；中心电流片中的磁岛向下运动，逐渐演变成底部含有３个磁闭合区的冕流结构。进而在中心电流片中再次发生磁场重联，多次形成向下运动的小型磁岛，并与底部磁闭合区发生结合不稳定性。同时在磁闭合区中也有磁场重联发生，导致中心小磁闭合区的湮灭。初始电流片之间的距离趋近，上述演化过程越快。日冕多层电流片中的磁场重联过程可能对日冕物质抛射和日冕加热有着重要影响。
The nonlinear evolution and magnetic field reconnection of the resistive tear modes in a coronal multi-layer current sheet are studied numerically. The results show that the islands and plasma clusters in the current sheet near the top of the computational region are uplifted, And carries a large amount of magnetic energy and thermal energy; the magnetic island in the central current sheet moves downward and gradually evolves into a crowded stream structure with three magnetic closed areas at the bottom. Furthermore, magnetic field reconnection takes place again in the center current sheet, forming a small magnetic island moving downwards many times and instability with the bottom magnetic closing zone. At the same time, magnetic reconnection also occurs in the magnetic confinement zone, resulting in annihilation of the magnetic confinement zone in the center. The distance between the initial current pieces approaches, the faster the above evolution. Magnetic reconnection in a coronal multi-layer current sheet may have a major impact on coronal mass ejection and coronal heating.