Your browser does not seem to support JavaScript. As a result, your viewing experience will be diminished, and you have been placed in read-only mode.
Please download a browser that supports JavaScript, or enable it if it's disabled (i.e. NoScript).
@东岳 多谢李老师了,是时间步长的原因,我开始按库伦数取得 听了您的建议往小了试,没有出现发散