線程#add_trace_func():add_trace_func()是一個Thread類方法,該方法將進程添加為跟蹤處理程序。
用法:Thread.add_trace_func()
參數:線程值
返回:將進程添加為跟蹤處理程序。
示例1:
# Ruby code for Thread.add_trace_func() method
# declaring Thread
a = Thread.new { print "a"; Thread.stop; print "c" }
prc = lambda {puts 'Hello'}
# add_trace_func form
puts "Thread a add_trace_func() form : #{a.add_trace_func(prc)}\n\n"
輸出:
Thread a add_trace_func() form : #
示例2:
# Ruby code for Thread.add_trace_func() method
# declaring Thread
a = Thread.new { puts "HI! I am learning to code"}
prc = lambda {puts 'Hello'}
# add_trace_func form
puts "Thread a add_trace_func() form : #{a.add_trace_func(prc)}\n\n"
輸出:
Thread a add_trace_func() form : #
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