红宝石 |线程活着？函数

Thread#alive?() ：alive?()是一个 Thread 类方法，用于检查线程是在运行还是在休眠。

Syntax: Thread.alive?()

Parameter: Thread values

Return: true – if running
else false

示例 #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

示例 #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