#print(lst) def sum(list): "对列表的数值求和" s = 0 for x in list: s += x return s def average(list): "对列表数据求平均值" avg = 0 avg = sum(list)/(len(list)*1.0) #调用sum函数求和 return avg print("avg = %f"%average(lst))运行结果
# Closure function def func(): print('n=', n) # Accessor methods for n def get_n(): return n def set_n(value): nonlocal n n = value # Attach as function attributes func.get_n = get_n func.set_n = set_n return func >>> f = sample() >>> f() n= 0 >>> f.set_n...
Python,又有不懂了。 这是题目,只有英文的: Write a function average that takes a list of numbers an
**kw是关键字参数,kw接收的是dict 可变参数即可以直接传入:fun(1,2,3),又可以先组装list或tuple,再通过*arg传入:func(*(1,2,3)); 关键字参数既可以直接传入:fun(a=1,b=2),又可以先组装dict,再通过**kw传入:function(**{‘a':1,'b':2})...
light", width="800px", height="400px")) # 2. 添加数据 line.add_xaxis(x_data_list) ...
average = average_gen() average(10) average(11) average(12) print(average.__code__.co_varnames) # ('new_value', 'total') print(average.__code__.co_freevars) # ('series',) print(average.__closure__) # (<cell at 0x000001C98AE12FD0: list object at 0x000001C98AE00F80>,) pri...
使用Python 编写循环平均成绩函数的示例代码如下: ```python def calculate_average_grade(scores): total = 0 count...
Average Grade: 86.4 In the exercise above, we declare a "Student" NamedTuple with the fields 'name', 'age', and 'marks'. The "calculate_average_grade()" function takes a "Student" NamedTuple as input, calculates the average grade from the 'marks' field, and returns it. Next, we c...
The previous console output shows the result of our Python syntax. You can see the averages for each group and column in our pandas DataFrame.Example 2: Mean by Group & Subgroup in pandas DataFrameExample 1 has shown how to get the mean for different groups based on one grouping column....
指数移动平均线(exponential moving average)是另一种技术指标。指数移动平均线使用的权重是指数衰减的。对历史数据点赋予的权重以指数速度减小,但不会到达0。在计算权重的过程中使用 exp 和 linspace 函数。 1)先了解numpy中的exp 和 linspace 函数 x = np.arange(5)y = np.arange(10)print ("Exp", np.exp...