有效解决OSG中读写中文文件名及中文路径问题-Effectively solve the OSG in the file name to read and write English and Chinese path problem

一个关于osg的读写中文文件名及中文路径问题示例，可以供初学者学习-Osg reading and writing one on the Chinese file name and path problems in Chinese example, you can learn for beginners