python如何并列运行两个for循环
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需要用到多线程
#!/usr/bin/python3
import _thread
import time
# 为线程定义一个函数
def print_time( threadName, delay):
....count = 0
....while count < 5:
........time.sleep(delay)
........count += 1
........print ("%s: %s" % ( threadName, time.ctime(time.time()) ))
# 创建两个线程
try:
...._thread.start_new_thread( print_time, ("Thread-1", 2, ) )
...._thread.start_new_thread( print_time, ("Thread-2", 4, ) )
except:
....print ("Error: 无法启动线程")
while 1:
....time.sleep(5)
....print('is main ')
