Ruby 线程 alive?函数

Thread#alive?() : alive?() 是Thread类的一个方法，用于检查线程是在运行还是在睡觉。

语法。Thread.alive?()

参数。线程值

返回：true – 如果正在运行 ，否则为false

例子 #1 :

# Ruby code for Thread.alive?() method
  
# declaring Thread 
a = Thread.new { print "a"; Thread.stop; print "c" }
  
# alive? form
puts "Thread a alive?() form : #{a.alive?()}\n\n"

输出:

Thread a alive?() form : true

例子 #2 :

# Ruby code for Thread.alive?() method
  
# declaring Thread 
a = Thread.new { puts "HI! I am learning to code"}
  
# alive? form
puts "Thread a alive?() form : #{a.alive?()}\n\n"

输出:

Thread a alive?() form : true

HI! I am learning to code