#for i in range(10):
for i in range(8, 5, -1):
print(f”{i} Hello!”)
カテゴリー: Python
python matchとif
initial_balance = int(input(“Initial Balance? “))
match initial_balance:
case n if n >= 100_000:
RATE = 1.1
case n if n >= 80_000:
RATE = 1.08
case n if n >= 60_000:
RATE = 1.06
case _:
RATE = 1.01
print(f”Current rate: {RATE:.2f}”)
print(f”Year 0: {initial_balance:,.2f}”)
print(f”Year 1: {initial_balance * RATE:,.2f}”)
print(f”Year 2: {initial_balance * RATE * RATE:,.2f}”)
Python ifelse
initial_balance = int(input(“Initial Balance? “))
RATE = 1.1 if initial_balance >= 100_000 else 1.01
print(f”Current rate: {RATE:.2f}”)
print(f”Year 0: {initial_balance:,.2f}”)
print(f”Year 1: {initial_balance * RATE:,.2f}”)
print(f”Year 2: {initial_balance * RATE * RATE:,.2f}”)
Python matchで条件分岐
match signal:
case “red”:
print(“Stop”)
case “yellow”:
print(“Slow down!”)
case “blue” | “green”:
print(“Go!”)
case _:
print(“Invalid signal color…”)
python elif条件分岐
signal = input(“Signal color?”)
if signal == “red”:
print(“Stop!”)
elif signal == “yellow”:
print(“Slow down!”)
elif signal == “blue” or signal == “green”:
print(“Go!”)
else:
print(“Invalid signal color…”)
Python 論理演算子
論理演算子
and なおかつ
ore もしくは
not ~ではない
eng_score = int(input(“English Score?”))
math_score = int(input(“Math Score?”))
#if eng_score == 100 or math_score == 100:
if not (eng_score == 0 or math_score == 0):
print(“OK!”)
else:
print(“NG!”)
Python 条件分岐
条件分岐
#if
score = int(input(“Score? “))
比較演算子
if score > 80:
print(“OK!”)
print(“Good Job”)
else:
print(“NG!”)
print(“Nice try!”)
print(“End of program …”)
Python if条件分岐
順次処理
#print(100)
#print(100)
#print(100)
#print(100)
条件分岐
#if
score = int(input(“Score? “))
if score > 80:
print(“OK!”)
print(“Good Job”)
print(“End of program …”)
Python 文字列のオプション
initial_balance = int(input(“Initial Balance? “))
RATE = 1.1
print(f”Year 0: {initial_balance:,.2f}”)
print(f”Year 1: {initial_balance * RATE:,.2f}”)
print(f”Year 2: {initial_balance * RATE * RATE:,.2f}”)
Python Todoリスト
class TodoList:
def init(self):
self.tasks = []
def add_task(self, task):
self.tasks.append(task)
def remove_task(self, task):
if task in self.tasks:
self.tasks.remove(task)
else:
print("タスクが見つかりません。")
def list_tasks(self):
if not self.tasks:
print("ToDoリストは空です。")
else:
print("ToDoリスト:")
for idx, task in enumerate(self.tasks, start=1):
print(f"{idx}. {task}")def main():
todo_list = TodoList()
while True:
print(“\n操作を選択してください:”)
print(“1. タスクを追加”)
print(“2. タスクを削除”)
print(“3. タスク一覧を表示”)
print(“4. 終了”)
choice = input(“選択: “)
if choice == '1':
task = input("タスクを入力してください: ")
todo_list.add_task(task)
print("タスクが追加されました。")
elif choice == '2':
task_idx = int(input("削除するタスクの番号を入力してください: "))
if 1 <= task_idx <= len(todo_list.tasks):
task_to_remove = todo_list.tasks[task_idx - 1]
todo_list.remove_task(task_to_remove)
print("タスクが削除されました。")
else:
print("無効な番号です。")
elif choice == '3':
todo_list.list_tasks()
elif choice == '4':
print("プログラムを終了します。")
break
else:
print("無効な選択です。")if name == “main“:
main()