Programming Ruby Reading notes (iii)

Standard type for Ruby:

A. Number

Class Test
3.times {print "X"}
1.upto (5) {|i| Print I, ""}
99.downto {|i| Print I, ""}
50.step (80,5) {|i| Print I, "" "" ""
a = ""
B = "
puts" "
puts A + b
puts integer (a) + integer (b)

 end　　　　　　

Output:

X x 1 2 3 4 5 2334-A (
57)

B. String

Class Test puts "that's right
"
puts%q/that ' s right/
puts ' escape using ' '
puts%q/es Cape using ""/End
puts "now is #{
def" (a)
' the ' + a '
The
(' Time ')
} For all good coders ... "　　　　　　　

Output:

That's right to escape using "that's right to escape using" "" Now Is the ""
Coders ...

Action string