413Xiaol

摘要： function GetDistance( lat1, lng1, lat2, lng2){ var radLat1 = lat1 * Math.PI / 180.0 var radLat2 = lat2 * Math.PI / 180.0 var a = (lat1 - lat2) * Math.PI / 180.0; var b = (lng1 - ln... 阅读全文

摘要： from multiprocessing import Process, Pool import time import subprocess def task(msg): print 'hello, %s' % msg time.sleep(1) def test_pool(): pool = Pool(processes=4) for x in ran... 阅读全文

摘要： import threading import subprocess import time def need_thread(func, *args, **kwargs): def fun(): print "sub:" + str(threading.current_thread().ident) time.sleep(1) sub... 阅读全文