Only a handful of source code lines is required to make a JAXB Marshaller object write a document tree as an XML file. First you obtain a Marshaller from a JAXBContext. Then, you might set a number of properties, such as the one that's used below, wh
补充过程中~ 感觉应该是C#调用非托管的比较专门的class 例1. public struct ImageDataMsg { public char DataType; public int Srv_index; public char ConvertType; //这个个地方要指定长度,这样就可以的德奥结构体的正确长度了 [MarshalAs(UnmanagedType.ByValArray, SizeConst = 10)] public int[] VecLayer;//需要那几个图层.
原文:Marshal UTF8 Strings in .NET Marshal UTF8 Strings in .NET Wow, what a pain in the butt. .NET strings are stored internally as UTF16, not UTF8, so if you're marshaling strings to and from a library that wants strings as UTF8, you have to manually m
今天运行一个launch文件的时候出现了以下报错 load_parameters: unable to set parameters (last param was [/robot_state_publisher/publish_frequency=20.0]): cannot marshal None unless allow_none is enabled 原因是我之前写一个arbotix配置文件的时候一个参数的值没有填写. 而这是不允许的,也就是说不能传递一个没有值的参数.因此在我补上参数