2013-04-28から1日間の記事一覧
String literal "string" 'string'?\u20AC==?€ concatenate string and >= s='hello' puts s[0] #output 'h' puts s[s.length-1] #output 'o' puts s[-2] #output 'l' puts s[-s.length] #output 'h' puts s[s.length] #nil :there is no character at that …