对python多线程与global变量详解

x = str(theguardian_globle.g)
 #x为给下载的文件命的名
 filePath = "E://wgetWeiBao//"+x+".html"
 try:
  wget.download(url,filePath)
  theguardian_globle.g+=1
  print x+" is downloading..."
 
 except:
  print "error!"

#这个是全局变量g的定义
global g
 
g = 0

函数：
 
def downLoad(url,num):
 x = str(num)
 filePath = "E://wgetWeiBao//"+x+".html"
 try:
  wget.download(url,filePath)
  print x+" is downloading..."
 
 except:
  print "error!"

多线程消费者_给操作全局变量的语句加锁
class Cosumer(threading.Thread):
 def run(self):
  print('%s:started' % threading.current_thread())
 
  while True:
   global gCondition
   gCondition.acquire()
   while q.empty()==True:
    gCondition.wait()
   url = q.get()
   num = theguardian_globle.g
   theguardian_globle.g+=1
   gCondition.release()
   downLoad(url,num)