回答編集履歴
4
編集
answer
CHANGED
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@@ -26,27 +26,20 @@
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26
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```
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---
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**リストの要素がすべてintにキャスト出来るか確かめる
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29
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+
**リストの要素がすべてintにキャスト出来るか確かめる方法**
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```Python
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def is_num_list(arg_list):
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try:
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list(map(int, arg_list))
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return True
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except:
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return False
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-
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def main():
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my_str1 = ['100', '.', 'abc']
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my_str2 = ['421', '657', '1000']
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-
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try:
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print(list(map(int, my_str1)))
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-
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except:
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print('cannot cast')
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-
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try:
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print(list(map(int, my_str2)))
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-
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except:
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print('cannot cast')
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if __name__ == '__main__':
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@@ -59,5 +52,29 @@
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```
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---
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55
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+
**int型のリストから、特定の範囲の値だけ抜き出す関数**
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56
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+
```Python
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57
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def make_func_in_range(arg_range):
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58
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def ret_func(num):
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return arg_range[0] <= num <= arg_range[1]
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return ret_func
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def filter_in_range(arg_list, arg_range: tuple):
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in_range = make_func_in_range(arg_range)
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return filter(in_range, arg_list)
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def main():
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int_list = [421, 657, 1000]
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print(list(filter_in_range(int_list, (500, 800))))
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if __name__ == '__main__':
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main()
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"""出力
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[657]
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"""
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```
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---
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62
79
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せっかく回答をいただいているんですから、まずそちらにお礼言いましょうよ。
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63
80
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[https://teratail.com/questions/92558](https://teratail.com/questions/92558)
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3
追記
answer
CHANGED
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@@ -34,6 +34,28 @@
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return True
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except:
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return False
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37
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def main():
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39
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my_str1 = ['100', '.', 'abc']
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40
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my_str2 = ['421', '657', '1000']
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if is_num_list(my_str1):
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print(list(map(int, my_str1)))
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else:
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print('cannot cast')
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if is_num_list(my_str2):
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print(list(map(int, my_str2)))
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else:
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print('cannot cast')
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if __name__ == '__main__':
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main()
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"""実行結果
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cannot cast
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[421, 657, 1000]
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"""
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59
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```
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---
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2
追記
answer
CHANGED
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@@ -1,3 +1,4 @@
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1
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**リストを順にintにキャストし、不可能な場合Falseを返す関数**
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1
2
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```Python
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2
3
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def is_int(arg):
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3
4
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try:
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1
追記
answer
CHANGED
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@@ -25,5 +25,16 @@
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25
25
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```
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26
26
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27
27
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---
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|
28
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+
**リストの要素がすべてintにキャスト出来るか確かめる関数**
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|
29
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+
```Python
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30
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+
def is_num_list(arg_list):
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31
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try:
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32
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list(map(int, arg_list))
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33
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return True
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34
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except:
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return False
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36
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```
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37
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+
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38
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+
---
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28
39
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せっかく回答をいただいているんですから、まずそちらにお礼言いましょうよ。
|
|
29
40
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[https://teratail.com/questions/92558](https://teratail.com/questions/92558)
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