All nonnegative energies are allowed .

所有非负能量都是允许的。

Property of the new instance to a system-supplied message that describes the error , such as " nonnegative number required . " This message takes into account the current system culture .

属性初始化为系统提供的、描述错误的消息，例如“必须为非负数”。此消息将考虑当前系统区域性。