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).
@wwzhao 你是指严格小于1吗？不一定的，我们也用过超过2的库朗数，结果也还行。
