Ruby - 注释
注释是 Ruby 代码中的注释行,在运行时会被忽略。 单行注释以 # 字符开头,它们从 # 延伸到行尾,如下所示 −
#!/usr/bin/ruby -w # This is a single line comment. puts "Hello, Ruby!"
执行时,上述程序产生以下结果 −
Hello, Ruby!
Ruby 多行注释
您可以使用 =begin 和 =end 语法来注释多行,如下所示 −
#!/usr/bin/ruby -w puts "Hello, Ruby!" =begin This is a multiline comment and con spwan as many lines as you like. But =begin and =end should come in the first line only. =end
执行时,上述程序产生以下结果 −
Hello, Ruby!
确保尾随注释与代码足够远并且易于区分。 如果一个块中存在多个尾随注释,请将它们对齐。 例如 −
@counter # keeps track times page has been hit @siteCounter # keeps track of times all pages have been hit