Python将字符串分隔成单词和递归

Question

我试图创建一个接受输入的代码（例如下面的代码）

  

输入：
  BHK158车辆11
  OIUGHH MOTORCYCLE 34.46
  BHK158 VEHICLE 12.000
  TRIR TRUCK 2.0
  BLAS215 MOTORCYCLE 0.001
  结束

并生成一个输出，其中列出了每个车牌号码，总费用列在旁边（例如下面）

  

对应输出：
  OIUGHH：5.8582
  BHK158：5.75
  TRIR：2.666
  BLAS215：0.00017

车牌每公里收费0.25美元（公里数是输入清单中的数字值），卡车每公里收费1.333美元，摩托车每公里收费0.17美元。输出按降序列出。

到目前为止，这是我的代码：

fileinput = input('Input: \n')
split_by_space = fileinput.split(' ')

vehicles = {}


    if split_by_space[1] == 'VEHICLE':
        split_by_space[2] = (float(split_by_space[2]) * 0.25) 
    elif split_by_space[1] == 'TRUCK':
        split_by_space[2] = float(split_by_space[2]) * 1.333 
    elif split_by_space[1] == 'MOTORCYCLE':
        split_by_space[2] = float(split_by_space[2]) * 0.17 

    if split_by_space[0] in vehicles:
        previousAmount = vehicles[split_by_space[0]]
        vehicles[split_by_space[0]] = previousAmount + split_by_space[2]
    else:
        vehicles[split_by_space[0]] = split_by_space[2]

谢谢，非常感谢任何帮助/提示。

Answer 1

通过你的代码我注意到了一些事情，python中的列表指示从0开始，而不是1，所以你得到了一堆出界错误。其次，输入只占用输入的第一行，因此它永远不会越过第一行。 .split()默认情况下按\n分割文字，您必须指定是否要按其他内容进行拆分，例如空格。

test.txt内容：

BHK158 VEHICLE 11
OIUGHH MOTORCYCLE 34.46
BHK158 VEHICLE 12.000
TRIR TRUCK 2.0
BLAS215 MOTORCYCLE 0.001

python代码：

fileinput = open('test.txt', 'r')
lines = fileinput.readlines()

vehicles = {}

for line in lines:
    split_by_space = line.split(' ')
    if split_by_space[1] == "VEHICLE":
        split_by_space[2] = (float(split_by_space[2]) * 0.25)
    elif split_by_space[1] == "TRUCK":
        split_by_space[2] = float(split_by_space[2]) * 1.333
    elif split_by_space[1] == "MOTORCYCLE":
        split_by_space[2] = float(split_by_space[2]) * 0.17


    if split_by_space[0] in vehicles:
        previousAmount = vehicles[split_by_space[0]]
        vehicles[split_by_space[0]] = previousAmount + split_by_space[2]
    else:
        vehicles[split_by_space[0]] = split_by_space[2]

输出：

{'BLAS215': 0.00017, 'OIUGHH': 5.858200000000001, 'TRIR': 2.666, 'BHK158': 5.75}