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puts 3/5#ÕâÀïÊÇÕûÊýÐÎʽµÄ½á¹û
puts 3/5.0#ÕâÀïÊÇСÊýÐÎʽµÄ½á¹û
=begin
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  =end²»µ«ÒªÓÐÆðÖ¹£¬»¹ÒªËõ½ø²ÅÓÐÓá£
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#¶þ¡¢Á¬ÐÐ
puts "Hello Ruby!"; puts "This is a "\
"String";#ÐÐβµÄ·ÖºÅ¿ÉÒÔÊ¡ÂÔ?‘\’ÊÇÁ¬Ðзû£¬ÐÐβ¼´Ä¬ÈÏΪһ¸öÓï¾äµÄ½áÊø£¬¿ÉÒÔûÓзֺţ¬Èç¹û²»Ï£ÍûËü½áÊøµ«Ïë»»ÐУ¬ÐèÒª¼ÓÁ¬Ðзû'\'ÇÒÖ®ºó²»ÄÜÔÙ¼ÓÐÐ×¢ÊÍ¡£
#Èý¡¢print,puts,printf
#puts¿ÉÒÔ¼Ó¶à¸ö²ÎÊýÔÚºóÃ棬ÿÊä³öÒ»¸ö²ÎÊý×Ô¶¯¼ÓÒ»¸ö»»Ðзû£¬¶øprint²»¼Ó»»Ðзû
puts "%d,%s",100,"string, hello!";
#ÓøñʽÂÀÊä³öÓеãÏñCÓïÑÔ·ç¸ñ,ÓÃprintf
printf "%d,%s",100,"string, hello!";
#ËÄ¡¢Ò»Ð©Ó﷨֪ʶ
#0¿ªÍ·±í8½øÖÆÊý£¬0x¿ªÍ·±í16½øÖÆÊý,0b¿ªÍ·±í¶þ½øÖÆ£¬µ¥ÒýºÅË«ÒýºÅ¶¼¿ÉÒý×Ö·û´®
#Ò»¸öÊý×éÖеÄÔªËØ¿ÉÒÔ»¥²»Ïàͬ£¬ÊÇÈõÀàÐÍÓïÑÔ
#Çø¼ä£º1..5±í1£¬2£¬3£¬4£¬5¡£1...5±íʾ1£¬2£¬3£¬4
#¸³Öµ¿ÉÓÃÕâÖÖÐÎʽa,b,c=3,4,5;
#±È½ÏÔËËãʱ¡£==×îÈõ£¬Ö»ÒªÖµÏàͬ¼´¿É£¬Èç1==1.0ΪÕ棬eql?Ç¿Ò»µã£¬ÐèҪֵΪÀàÐÍÏàͬ£¬Èç1==1£¬equal?×îÇ¿ÐèÒªÁ½¸ö±äÁ¿µÄµØÖ·Ïàͬ£¬Èça=b,b==a²ÅΪÕæ¡£
#<=>±È½ÏÁ½¸ö¶ÔÏóµÄ´óС£¬´óÓÚµÈÓÚСÓڷֱ𷵻Ø1£¬0£¬-1¡£Èç“aaa” <=> "abc"·µ»Ø-1
#===ÓÃÀ´·µ»ØÓұߵÄÖµÊÇ·ñÊôÓÚ×ó±ßµÄÇø¼ä£¬Èç (0..9) === 4·µ»Øtrue
#=~ºÍ!~·Ö±ðÓÃÀ´±íʾÕýÔò±í´ïʽÊÇ·ñÆ¥Å䣬ǰÕßÆ¥Åäʱ·µ»ØλÖ㬲»Æ¥Åäʱ·µ»Ønil¡£ºóÕß·µ»Øtrue»òfalse
#Î塢ѡÔñÓï¾ä
#ÕâÊÇifÓï¾ä£¬µ¥ÐУ¬¶àÐÐÇé¿ö£¬ÓëJava¼°C/C++²»Í¬µÄÊÇ£¬ËüÓÐthen endµÈ¹Ø¼ü´Ê¡£
(puts "\n1==1";puts "and 2==2";) if(1==1 and 2==2)
if(1==1) then puts"here is 1==1, then end"; end;
if (1==2)
  puts 1==2
elsif(2==2)
  puts "2==2 is true"
else
    puts 2434
end
#unlessÏ൱ÓÚif not.ÎÒ¾õµÃ½öÊÇÈç´ËµÄ»°£¬Ã»Ê²Ã´ÒâÒå
unless (1==2)
puts "unless 1==2"
end
#caseµÄÓ÷¨ÈçÏÂ.½á¹û£ºx=3;ÆäËü¿ÉÄÜ¡£caseÆäʵÓõñȽÏÉÙ£¬¼´Ê¹ÎÒ×Ô¼º±à³ÌÒ²ÓõñȽÏÉÙ¡£
x=3
case x
when 1..2
print "x=",x,";ÔÚ 1..2ÖÐ"
when 4..9, 0
print "x=",x,";ÔÚ4..9,0ÖÐ,»òÊÇ0"
else
print "x=",x,";ÆäËü¿ÉÄÜ\n"
end
#Áù¡¢Ñ­»·Óï¾ä
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while Ìõ¼þ
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class Person
 
  def initialize( name,age=18 )
    @name = name
    @age = age
    @motherland = "China"
  end
 
  def talk
    puts "my name is "+@name+", age is "+@age.to_s
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