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python 多线程实例详解
多线程通常是新开一个后台线程去处理比较耗时的操作，python做后台线程处理也是很简单的，今天从官方文档中找到了一个demo.
实例代码：
import threading, zipfile
class asynczip(threading.thread):
def init(self, infile, outfile):
threading.thread.init(self)
self.infile = infile
self.outfile = outfile
def run(self):
f = zipfile.zipfile(self.outfile, ‘w’, zipfile.zip_deflated)
f.write(self.infile)
f.close()
print(‘finished background zip of:’, self.infile)
background = asynczip(‘mydata.txt’, ‘myarchive.zip’)
background.start()
print(‘the main program continues to run in foreground.’)
background.join() # wait for the background task to finish
print(‘main program waited until background was done.’)
结果:
the main program continues to run in foreground.
finished background zip of: mydata.txt
main program waited until background was done.
press any key to continue . . .
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