Webpage html export pro

# A Simple Command-Line Todo List Manager
# Demonstrates core Python concepts: functions, lists, loops, input handling, error handling

def display_todos(todos: list) -> None:
    """Display all todo items with their indices"""
    if not todos:
        print("\nYour todo list is empty!")
        return
    
    print("\n=== Your Todo List ===")
    for idx, todo in enumerate(todos, 1):
        print(f"{idx}. {todo}")
    print("======================\n")

def add_todo(todos: list) -> None:
    """Add a new todo item to the list"""
    todo = input("Enter the new todo item: ").strip()
    if todo:
        todos.append(todo)
        print(f"'{todo}' has been added to your list!")
    else:
        print("Error: Todo item cannot be empty!")

def delete_todo(todos: list) -> None:
    """Delete a todo item by its index"""
    display_todos(todos)
    if not todos:
        return
    
    try:
        index = int(input("Enter the number of the todo to delete: ")) - 1
        if 0 <= index < len(todos):
            deleted = todos.pop(index)
            print(f"'{deleted}' has been removed from your list!")
        else:
            print("Error: Invalid todo number!")
    except ValueError:
        print("Error: Please enter a valid number!")

def main() -> None:
    """Main function to run the todo list manager"""
    todos = []
    print("Welcome to the Todo List Manager!")
    
    while True:
        print("\nMenu:")
        print("1. View all todos")
        print("2. Add a new todo")
        print("3. Delete a todo")
        print("4. Exit")
        
        choice = input("Enter your choice (1-4): ").strip()
        
        if choice == "1":
            display_todos(todos)
        elif choice == "2":
            add_todo(todos)
        elif choice == "3":
            delete_todo(todos)
        elif choice == "4":
            print("Thank you for using the Todo List Manager! Goodbye!")
            break
        else:
            print("Error: Please enter a valid choice (1-4)!")

if __name__ == "__main__":
    main()

>>>> Print("这是一行高亮代码")
print("这是没有高亮的代码")

locked: true
password: "123456"