[已解决]Python：每日一题 332

Windypper

1. # !/usr/bin/env python
   
2. # -*- coding: utf-8 -*-
   
3. 
   
4. def input_num():
   
5.     try:
   
6.         num = int(input('Please input a positive integer: '))
   
7.         if num < 1e15:
   
8.             return num
   
9.         else:
   
10.             print('Integer must be less than 1E+15 and greater than 0')
    
11.             input_num()
    
12.     except ValueError:
    
13.         print('Input Error\n\n')
    
14.         input_num()
    
15. 
    
16. 
    
17. cardinal = {0: '', 1: 'one', 2: 'two', 3: 'three', 4: 'four', 5: 'five', 6: 'six',
    
18.             7: 'seven', 8: 'eight', 9: 'nine', 10: 'ten', 11: 'eleven', 12: 'twelve',
    
19.             13: 'thirteen', 14: 'fourteen', 15: 'fifteen', 16: 'sixteen', 17: 'seventeen',
    
20.             18: 'eighteen', 19: 'nineteen', 20: 'twenty', 30: 'thirty', 40: 'forty',
    
21.             50: 'fifty', 60: 'sixty', 70: 'seventy', 80: 'eighty', 90: 'ninety',
    
22.             }
    
23. thousands = {1: '', 2: 'Thousand', 3: 'Million', 4: 'Billion', 5: 'Trillion'}
    
24. 
    
25. 
    
26. def num_eng(num, loop=0):
    
27.     num_text = ''
    
28.     loop += 1
    
29.     if num:
    
30.         tens = num % 100  # extract tens digit and unit digit
    
31.         if tens <= 20:  # the situation tens number less than 20
    
32.             tens_text = cardinal[tens]
    
33.         else:  # the situation tens number greater than 20
    
34.             ten_digit = cardinal[tens - tens % 10]  # extract tens digit
    
35.             unit_digit = cardinal[tens % 10]  # extract unit digit
    
36.             if ten_digit and unit_digit:  # if both tens digit and unit digit are non-zero, add a hyphen between
    
37.                 tens_text = f"{ten_digit}-{unit_digit}"
    
38.             else:
    
39.                 tens_text = f"{ten_digit}{unit_digit}"
    
40.         if tens and loop > 1:  # if the number is greater than one thousand, add a space after unit digit
    
41.             tens_text += ' '
    
42. 
    
43.         hundreds = num // 100 % 10  # extract hundred digit
    
44.         if not hundreds:  # if hundreds digit is zero, add nothing to the string
    
45.             hundreds_text = ''
    
46.         else:
    
47.             hundreds_text = f'{cardinal[hundreds]} hundred '
    
48. 
    
49.         # make string to be titlecased
    
50.         tens_text = tens_text.title()
    
51.         hundreds_text = hundreds_text.title()
    
52. 
    
53.         # add 'and' before tens digit in two situations:
    
54.         # 1. both tens digit and hundreds digits are non-zero
    
55.         # 2. the last tens digit when the number is greater than one thousand
    
56.         if tens and hundreds or num // 1000 and tens and loop == 1:
    
57.             hundreds_text += 'and '
    
58.         # add 'and' before hundreds digit if it is the last one
    
59.         if num // 1000 and hundreds and not tens and loop == 1:
    
60.             hundreds_text = 'and ' + hundreds_text
    
61. 
    
62.         # recurse to higher magnitude
    
63.         num_text = num_eng(num // 1000, loop)
    
64.         return num_text + hundreds_text + tens_text + thousands[loop] + ' '
    
65. 
    
66.     else:
    
67.         if loop == 1:
    
68.             num_text = 'Zero'
    
69.         return num_text
    
70. 
    
71. if __name__ == '__main__':
    
72.     num = input_num()
    
73.     print(num_eng(num))
    

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不是應該加上and嗎
試了下我這個好像沒問題

Windypper

zltzlt 发表于 2020-2-15 21:22
解答错误

输入：1000000

1. # !/usr/bin/env python
   
2. # -*- coding: utf-8 -*-
   
3. 
   
4. def input_num():
   
5.     try:
   
6.         num = int(input('Please input a non-negative integer: '))
   
7.         if 0 <= num < 1e15:
   
8.             return num
   
9.         else:
   
10.             print('Integer must be non-negative and less than 1E+15')
    
11.             input_num()
    
12.     except ValueError:
    
13.         print('Input Error\n\n')
    
14.         input_num()
    
15. 
    
16. 
    
17. cardinal = {0: '', 1: 'one', 2: 'two', 3: 'three', 4: 'four', 5: 'five', 6: 'six',
    
18.             7: 'seven', 8: 'eight', 9: 'nine', 10: 'ten', 11: 'eleven', 12: 'twelve',
    
19.             13: 'thirteen', 14: 'fourteen', 15: 'fifteen', 16: 'sixteen', 17: 'seventeen',
    
20.             18: 'eighteen', 19: 'nineteen', 20: 'twenty', 30: 'thirty', 40: 'forty',
    
21.             50: 'fifty', 60: 'sixty', 70: 'seventy', 80: 'eighty', 90: 'ninety',
    
22.             }
    
23. thousands = {1: '', 2: 'Thousand', 3: 'Million', 4: 'Billion', 5: 'Trillion'}
    
24. 
    
25. 
    
26. def num_eng(num, loop=0):
    
27.     num_text = ''
    
28.     loop += 1
    
29.     if num:
    
30.         tens = num % 100  # extract tens digit and unit digit
    
31.         if tens <= 20:  # the situation tens number less than 20
    
32.             tens_text = cardinal[tens]
    
33.         else:  # the situation tens number greater than 20
    
34.             ten_digit = cardinal[tens - tens % 10]  # extract tens digit
    
35.             unit_digit = cardinal[tens % 10]  # extract unit digit
    
36.             if ten_digit and unit_digit:  # if both tens digit and unit digit are non-zero, add a hyphen between
    
37.                 tens_text = f"{ten_digit}-{unit_digit}"
    
38.             else:
    
39.                 tens_text = f"{ten_digit}{unit_digit}"
    
40.         if tens and loop > 1:  # if the number is greater than one thousand, add a space after unit digit
    
41.             tens_text += ' '
    
42. 
    
43.         hundreds = num // 100 % 10  # extract hundred digit
    
44.         if not hundreds:  # if hundreds digit is zero, add nothing to the string
    
45.             hundreds_text = ''
    
46.         else:
    
47.             hundreds_text = f'{cardinal[hundreds]} hundred '
    
48. 
    
49.         # make string to be titlecased
    
50.         tens_text = tens_text.title()
    
51.         hundreds_text = hundreds_text.title()
    
52. 
    
53.         # add 'and' before tens digit in two situations:
    
54.         # 1. both tens digit and hundreds digits are non-zero
    
55.         # 2. the last tens digit when the number is greater than one thousand
    
56.         if tens and hundreds or num // 1000 and tens and loop == 1:
    
57.             hundreds_text += 'and '
    
58.         # add 'and' before hundreds digit if it is the last one
    
59.         if num // 1000 and hundreds and not tens and loop == 1:
    
60.             hundreds_text = 'and ' + hundreds_text
    
61. 
    
62.         # recurse to higher magnitude
    
63.         num_text = num_eng(num // 1000, loop)
    
64.         if tens or hundreds:
    
65.             return num_text + hundreds_text + tens_text + thousands[loop] + ' '
    
66.         else:
    
67.             return num_text
    
68. 
    
69.     else:
    
70.         if loop == 1:
    
71.             num_text = 'Zero'
    
72.         return num_text
    
73. 
    
74. 
    
75. if __name__ == '__main__':
    
76.     num = input_num()
    
77.     print(num_eng(num))
    

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修改了下低級錯誤……