关于线程的问题 [英] Question about thread
问题描述
参考我发现的以下代码，
控制台中没有显示任何内容，请问为什么？
def thrd（param）： #the thread worker function
print" Received"，param
import thread
for i in range（5）： #start five threads将i传递给每一个
thread.start_new_thread（thrd，（i，））
提前致谢
Refering to the following codes I found, there is nothing displayed in the
console, may I ask why?
def thrd(param): # the thread worker function
print "Received",param
import thread
for i in range(5): # start five threads passing i to each one
thread.start_new_thread(thrd,(i,))
Thanks in advance
推荐答案
更确切地说，我想做的是让一个线程程序同时处理某些工作（而这些工作正在获取信息）来自
互联网，因此如果网络速度缓慢，线程可以加快这个过程。
start
| （blahblahblah ......）
v
+ ----- + ----- + ----- + ----- +
| | | | |
- + - - + - - + - - + - - + -
| | | | | | | | | |
| A | | B | | C | | D | | E |
| | | | | | | | | |
- + - - + - - + - - + - - + -
| | | | |
+ ----- + ----- + ----- + ----- +
| （blahblahblah ...）
v
完成！
虽然进程AE将访问同一程序中的共享变量，并且
每个进程都必须自己解析一个文件。
Valkyrie写道：
To be more precise, what I want to do is to have a threaded program to handle
some jobs concurrently (while those jobs are fetching information from the
Internet, so threading could speed up the process if the network is slow)
start
| (blahblahblah...)
v
+-----+-----+-----+-----+
| | | | |
--+-- --+-- --+-- --+-- --+--
| | | | | | | | | |
| A | | B | | C | | D | | E |
| | | | | | | | | |
--+-- --+-- --+-- --+-- --+--
| | | | |
+-----+-----+-----+-----+
| (blahblahblah...)
v
finish!
While process A-E will access the shared variables within the same program, and
each of those processes will have to parse a document on its own.
Valkyrie wrote:
参考我发现的以下代码，那里在
控制台中没有任何显示，请问为什么？
def thrd（param）：＃thread worker function
print" Received"，param
导入线程
for range in range（5）：#start five threads将i传递给每一个
thread.start_new_thread（thrd，（i，））
提前致谢
Refering to the following codes I found, there is nothing displayed in the
console, may I ask why?
def thrd(param): # the thread worker function
print "Received",param
import thread
for i in range(5): # start five threads passing i to each one
thread.start_new_thread(thrd,(i,))
Thanks in advance
" Valkyrie" < VA ****** @ cuhk.edu.hk>在消息中写道
news：1100875373.911763@eng-ser6 ...
"Valkyrie" <va******@cuhk.edu.hk> wrote in message
news:1100875373.911763@eng-ser6...
参考我发现的以下代码，
控制台中没有显示任何内容，我问为什么？
def thrd（param）：#the thread worker function
print" Received"，param
import thread
for i在范围（5）中：#start五个线程将i传递给每个人
thread.start_new_thread（thrd，（i，））
Refering to the following codes I found, there is nothing displayed in the
console, may I ask why?
def thrd(param): # the thread worker function
print "Received",param
import thread
for i in range(5): # start five threads passing i to each one
thread.start_new_thread(thrd,(i,))
你可能会问，但是当我尝试你的代码时，发生了什么：
Python 2.3.4（＃53，2004年5月25日，21：17：02）[MSC v.1200 32 bit（英特尔）]
win32
输入help，copyright，credit等等。或许可证或更多信息。
You may ask, but when I tried your code, here is what happened:
Python 2.3.4 (#53, May 25 2004, 21:17:02) [MSC v.1200 32 bit (Intel)] on
win32
Type "help", "copyright", "credits" or "license" for more information.
def thrd（param）：＃thread worker function
.... print"收到，param
....导入线程
我在范围内（5）：#start five threads将i传递给每一个
.... thread.start_new_thread （thrd，（i，））
....
1960
836
232
2864
3692收到0
def thrd(param): # the thread worker function .... print "Received",param
.... import thread
for i in range(5): # start five threads passing i to each one .... thread.start_new_thread(thrd,(i,))
....
1960
836
232
2864
3692 Received 0
收到1
收到2
收到3
收到4
请注意，1960等数字似乎是
thread.start_new_thread（）函数。
-
我实际上并没有读过我的hotmail帐户，但你可以用
Received 1
Received 2
Received 3
Received 4
Note that the numbers 1960, etc., appear to be the return values of the
thread.start_new_thread() function.
--
I don''t actually read my hotmail account, but you can replace hotmail with
excite if you really want to reach me.
当我在python的控制台中逐行执行时，我得到了类似的结果。
但是当我尝试在文件中运行它时，请说：
python demo.py
它只是没有回报我。我现在不知道这个......
Russell Blau写道：
When I do it line by line in python''s console, I have similar result to youl.
But when I try to run it in a file, say:
python demo.py
It just returns me nothing. I have no idea on this right now...
Russell Blau wrote:
" Valkyrie" < VA ****** @ cuhk.edu.hk>在消息中写道
新闻：1100875373.911763@eng-ser6 ...
"Valkyrie" <va******@cuhk.edu.hk> wrote in message
news:1100875373.911763@eng-ser6...
参考我发现的以下代码，
控制台中没有显示任何内容，我问为什么？
def thrd（param）：#the thread worker function
print" Received"，param
import thread
for i在范围（5）中：#start五个线程将i传递给每个人
thread.start_new_thread（thrd，（i，））
Refering to the following codes I found, there is nothing displayed in the
console, may I ask why?
def thrd(param): # the thread worker function
print "Received",param
import thread
for i in range(5): # start five threads passing i to each one
thread.start_new_thread(thrd,(i,))
你可能会问，但是当我尝试你的代码，发生了什么：
Python 2.3.4（＃53，2004年5月25日，21：17：02）[MSC v.1200 32位（英特尔）]
win32
输入help，copyright，credit等等。或许可证或有关更多信息。
You may ask, but when I tried your code, here is what happened:
Python 2.3.4 (#53, May 25 2004, 21:17:02) [MSC v.1200 32 bit (Intel)] on
win32
Type "help", "copyright", "credits" or "license" for more information.
def thrd（param）：＃thread worker function
... print" Received"，param
...
导入线程
for range in range（5）：#start five threads将i传递给每一个
... thread.start_new_thread（thrd，（i，） ）
...
1960
836
232
2864
3692
收到0
def thrd(param): # the thread worker function
... print "Received",param
...
import thread
for i in range(5): # start five threads passing i to each one
... thread.start_new_thread(thrd,(i,))
...
1960
836
232
2864
3692
Received 0
收到1
收到2
收到3
收到4
注意数字1960等等，似乎是返回值
thread.start_new_thread（）函数。
Received 1
Received 2
Received 3
Received 4
Note that the numbers 1960, etc., appear to be the return values of the
thread.start_new_thread() function.
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