在python中使用List comprehension而不是loop

Question

def interval(a,b,n):
    dx = float(b-a)/(n+1)
    cnt = 1
    points = [a]
    xj = a
    while cnt <= n+1:
        xj += dx
        points.append(xj)
        cnt+=1
    return points

Answer 1

替换您的功能，如下所示： -

def interval(a,b,n):
    dx = float(b-a)/(n+1)
    points = [a]
    xj = a
    points.extend([xj + (i * dx) for i in xrange(1, n+2)])
    return points