Pedro Maia

要添加缺少的值,可以使用last存储一个变量,并检查它们之间的差距是否大于10:

a = {0: 1, 10: 3, 12: 2, 19: 4, 35: 5}
out = {}
last = 0
for i in a:
    b = int(i/10) * 10
    if (b - last) > 10:
        out[b-10] = [] # whatever you want it to be
    if b in out:
        out[b].append(a[i])
    else:
        out[b] = [a[i]]
    last = b

输出:

{0: [1], 10: [3, 2, 4], 20: [], 30: [5]}

你可以用 .readlines() 要获取所有行并通过索引获取所需行,请执行以下操作:

with open('myfile.txt', 'r') as f:
    lines = f.readlines()

line = lines[INDEX].strip()