目录c++项目后缀名vcxproj和sln区别`.vcxproj 文件.sln 文件Visual C++文件后缀名释义总结c++项目后缀名vcxproj和sln区别
def singleton_class class << self self end end class Human proc = lambda { puts \'proc says my class is \' + self.name.to_s }