基于CN中心差分的一维含时薛定谔方程求解，可以同时绘制区间内的势垒分布和波函数随时间变化的GIF图。
CN_center_difference是主程序，里面可以改求解精度，势垒分布，初始波函数分布等。
check_energy用来检测能量守恒。
huizhi_gif_new用来绘制并生成gif。
具体参数可见注释。(One dimensional time-dependent Schrodinger equation based on the CN center difference is solved. The GIF diagram of the potential barrier distribution in the interval and the time variation of the wave function can be plotted simultaneously.
CN_center_difference is the main program, which can be modified to solve the accuracy, the potential barrier distribution, the initial wave function distribution and so on.
Check_energy is used to detect conservation of energy.
Huizhi_gif_new is used to draw and generate GIF.
The specific parameters are visible.)