#用列表+循环实现,并包装成函数
def pySum(n): a = list(range(10)) b = list(range(0, 50, 5)) c = [] for i in range(len(a)): c.append(a[i] ** 2 + b[i] ** 3) return(c) print(pySum(10))
#用numpy实现,并包装成函数
import numpy def npSum(n): a = numpy.arange(10) b = numpy.arange(0, 50, 5) c = a + b return(c) print(npSum(10))
#对比两种方法实现的效率,给定一个较大参数n,用运行函数先后的timedelta表示
from datetime import datetime start = datetime.now() pySum(100000) delta = datetime.now()-start print(delta) start= datetime.now() npSum(100000) delta = datetime.now()-start print(delta)
运行结果app