每个等级一遍又一遍地重复自己

Question

我希望在每次运行循环时继续执行 totalxp 并将其相加，但是我希望每次达到更高等级时停止打印等级 1。

import math
totalxp = 0
rank = 1
while totalxp < 2000:
  xpearned = int(input('Enter xp earned last game'))
  totalxp = xpearned + totalxp
  if totalxp >= 100:
    rank = 1
    print('You have been promoted to Corporal', rank)
    totalxp = totalxp - 100
    print(totalxp)
  if totalxp >= 300:
    rank = rank + 1
    print('You have been promoted to Sergeant', rank)
    totalxp = totalxp - 300
  if totalxp >= 700:
    rank = rank + 2
    print('You have been promoted to Staff Sergeant', rank)
    totalxp = totalxp - 700
  if totalxp >= 1500:
    print('You have been promoted to Warrant Officer', rank)
  print(totalxp)

Answer 1

发生这种情况的原因是，如果一个值大于 300，则它必须大于 100，并且将执行第一个 if 语句。为避免这种情况，只需将检查上述较高值的 if 语句放在您的代码中，并将检查较小值的 if 语句放在下面。另外，对其他 if 块使用 elif。

import math
totalxp = 0
rank = 1
while totalxp < 2000:
  xpearned = int(input('Enter xp earned last game'))
  totalxp = xpearned + totalxp
  if totalxp >= 1500:
    print('You have been promoted to Warrant Officer', rank)
  elif totalxp >= 700:
    rank = rank + 2
    print('You have been promoted to Staff Sergeant', rank)
    totalxp = totalxp - 700
  elif totalxp >= 300:
    rank = rank + 1
    print('You have been promoted to Sergeant', rank)
    totalxp = totalxp - 300
  elif totalxp >= 100:
    rank = 1
    print('You have been promoted to Corporal', rank)
    totalxp = totalxp - 100
  print(totalxp)