Python中如何求列表list的平均数
当列表list中只包含数字时,如何求取它的平均数:
from numpy import * a = [52,69,35,65,89,15,34] b = mean(a) print(b)
运行结果:
51.285714285714285
当列表list中只包含数字时,如何求取它的平均数:
from numpy import * a = [52,69,35,65,89,15,34] b = mean(a) print(b)
运行结果:
51.285714285714285
from os import listdir from PIL import Image def pinjie(): # 获取当前文件夹中所有JPG图像 im_list = [Image.open(fn) for fn in listdir() if fn.endswith('.jpg')] # 图片转化为相同的尺寸 ims = [] for i in im_list: new...