檢測程序運算時間的快慢

1.import timeit
        print timeit.timeit("x=2+2")
        print timeit.timeit('x= sum(range(10))')

2.import cProfile
        def sumasd():
            counts = 10 **6
        nums = []
        for i in range(counts):
            nums.insert(0,i)
    
    
cProfile.run('sumasd()')