import time
from multiprocessing.dummy import Pool
start = time.time()
def get_page(str):
print(f'正在下载:"{str}"')
time.sleep(2)
print(f'成功:"{str}"')
name_list = ['a','b','c','d']
pool = Pool(4)
pool.map(get_page,name_list)
end = time.time()-start
print(f'耗时{end}s')
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