Ray's playground

摘要： [代码]　　In Ruby,these sequences are created using the . . and . . . range operators. The two-dot form createsan inclusive range, and the three-dot form creates a range that excludes the specified highva... 阅读全文

摘要： Modules are a way of grouping together methods, classes, and constants. Modules give youtwo major benefits:　　• Modules provide a namespace and prevent name clashes.　　• Modules support the ... 阅读全文

摘要： [代码]injectCode highlighting produced by Actipro CodeHighlighter (freeware)http://www.CodeHighlighter.com/--1[1,3,5,7].inject(0){|sum,element|sum+element}#=>162[1,3,5,7].inject(1){|product,element|... 阅读全文