Python中有两个线程模块,分别是thread和threading,threading是thread的升级版。threading的功能更强大。
创建线程有3种方法:
1、thread模块的start_new_thread函数
2、继承自threading.Thread模块
3、用theading.Thread直接返回一个thread对象,然后运行它的start方法
方法一、thread模块的start_new_thread函数
其函数原型:
start_new_thread(function,atgs[,kwargs])
其参数含义如下:
function: 在线程中执行的函数名
args:元组形式的参数列表。
kwargs: 可选参数,以字典的形式指定参数(即对一些参数进行指定初始化)
代码:
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import
thread def hello( id
= 0 , interval =
2 ): for
i in
filter ( lambda
x: x %
interval = =
0 , range ( 10 )): print
"Thread id : %d, time is %d\n" % ( id , i) if __name__ = =
"__main__" : #thread.start_new_thread(hello, (1,2)) 这种调用形式也是可用的 #thread.start_new_thread(hello, (2,4)) thread.start_new_thread(hello, (), { "id" : 1 }) thread.start_new_thread(hello, (), { "id" : 2 }) |
方法二:继承自threading.Thread模块
注意:必须重写run函数,而且想要运行应该调用start方法
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import
threading class
MyThread(threading.Thread): def
__init__( self , id , interval): threading.Thread.__init__( self ) self . id
= id self .interval =
interval def
run( self ): for
x in
filter ( lambda
x: x %
self .interval = =
0 , range ( 10 )): print
"Thread id : %d time is %d \n"
% ( self . id , x) if __name__ = =
"__main__" : t1 =
MyThread( 1 , 2 ) t2 =
MyThread( 2 , 4 ) t1.start() t2.start() t1.join() t2.join() |
方法三:用theading.Thread直接返回一个thread对象,然后运行它的start方法
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import
threading def hello( id , times): for
i in
range (times): print
"hello %s time is %d\n" %
( id
, i) if __name__ = =
"__main__" : t =
threading.Thread(target = hello, args = ( "hawk" , 5 )) t.start() |
Python 线程(一):创建线程,布布扣,bubuko.com
原文:http://www.cnblogs.com/wang-can/p/3580457.html