Python动态，多线程变量不工作

从你的代码中，看起来p是在if中定义的:

if __name__ == '__main__':
    p = Pool(1) // p is defined in this statement as it is intended. python depends on indents to map code.
url = 'http://httpbin.org/post'
cookies = {'PHPSESSID': '2a55b01f46b3c7e5764b70666ac81cae'}
headers = {"user-agent":"undefined"}
data=(
        ('o_id', (None, '3732')),
        ('p_owner', (None, '3732')),
        ('p_name', (None, '1')),
        ('p_desc', (None, 'null')),
        ('save', (None, '')),
)
def make_request(id):
    requests.post(url, cookies=cookies, verify=False, headers=headers, files=data)
print(p.map(make_request, range(3000, 0, -1)))

我假设你想做的是把所有的东西都放在主语句里面，在这种情况下，所有的代码都需要缩进。像这样:

if __name__ == '__main__':
    p = Pool(1) // in this example, all of the code is indented, which will allow it all to work.
    url = 'http://httpbin.org/post'
    cookies = {'PHPSESSID': '2a55b01f46b3c7e5764b70666ac81cae'}
    headers = {"user-agent":"undefined"}
    data=(
        ('o_id', (None, '3732')),
        ('p_owner', (None, '3732')),
        ('p_name', (None, '1')),
        ('p_desc', (None, 'null')),
        ('save', (None, '')),
    )
    def make_request(id):
        requests.post(url, cookies=cookies, verify=False, headers=headers, files=data)
    print(p.map(make_request, range(3000, 0, -1)))