LRTHW笔记七

puts "Mary had a little lamb. "
puts "It‘s fleese was white as #{‘snow‘}."
puts "And everywhere that Mary went."
puts "." * 10 # what‘d that do?

end1 = "C"
end2 = "h"
end3 = "e"
end4 = "e"
end5 = "s"
end6 = "e"
end7 = "B"
end8 = "u"
end9 = "r"
end10 = "g"
end11 = "e"
end12 = "r"

# watch that print VS. puts on this line what‘s it do?
print end1 + end2 + end3 + end4 + end5 + end6
puts end7 + end8 + end9 + end10 + end11 + end12

结果：

Mary had a little lamb.
It‘s fleese was white as snow.
And everywhere that Mary went.
..........
CheeseBurger

注意：

print和puts中一样，对于字符串变量，他们都是通过“+”将变量连接从而形成一个长的字符串；

print 一般输出结果后面不换行，而puts输出字串后会换行；

注意省略号的生成，由此可猜想，如果这样的结果是什么：

　　代码：

puts "01101 " * 8

　　输出：

[[email protected] rubywork]$ ruby ex7-2.rb
01101 01101 01101 01101 01101 01101 01101 01101