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
threaddef 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
threadingclass
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
threadingdef 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