Ruby 线程和类
我对ruby是新手。我创建了一个名为Station的类,如下所示:Ruby 线程和类,ruby,multithreading,class,Ruby,Multithreading,Class,我对ruby是新手。我创建了一个名为Station的类,如下所示: class Station def initialize() @no_crates = 5 while(true) sleep(1) @no_crates = Integer(@no_crates) + 1 end end def get_no_crates() return @no_crates end end 变量@no_crates应该随着时间的
class Station
def initialize()
@no_crates = 5
while(true)
sleep(1)
@no_crates = Integer(@no_crates) + 1
end
end
def get_no_crates()
return @no_crates
end
end
变量@no_crates应该随着时间的推移而增加,所以我想在一个单独的线程中运行这个类。我如何才能做到这一点,然后不时调用get_no_crates()函数来获取@no_crates
我尝试了以下方法,但没有成功
st = Thread.new{ Station.new()}
while(true)
sleep(1)
puts st.get_no_crates()
end
看看这个,试着去理解你做错了什么
class Station
def initialize()
@no_crates = 5
end
def run
while(true)
sleep(1)
@no_crates = Integer(@no_crates) + 1
end
end
def get_no_crates()
return @no_crates
end
end
station = Station.new
st = Thread.new{ station.run }
while(true)
sleep(1)
puts station.get_no_crates()
end
这是一个更好看的版本
class Station
attr_reader :no_crates
def initialize
@no_crates = 5
end
def run
loop do
sleep 1
@no_crates = @no_crates + 1
end
end
end
station = Station.new
st = Thread.new{ station.run }
loop do
sleep 1
puts station.no_crates
end
为什么我会得到这么多的反对票?贾扎卡拉·哈伊尔又一次支持更好的版本