HW3

1.Notebook

2.

3.學習卡與測驗

4.

# 3. Choose an Activity Based on Temperature and Humidity 🌦️⚽

## 📌 Description

This Python program recommends an activity based on the temperature and humidity entered by the user. 

The program uses `if`, `else`, and logical operators to determine which activity to play.

---

## 💻 Python Code

```python

# activity_selector.py

temp = input('Enter the temperature (warm/cold): ').strip().lower()

hum = input('Enter humidity (humid/dry): ').strip().lower()

# Decision Logic

if temp == 'warm' and hum == 'dry':

    print('Play Basketball')

elif temp == 'warm' and hum == 'humid':

    print('Play Tennis')

elif temp == 'cold' and hum == 'dry':

    print('Play Cricket')

else:

    print('Swim')

```

---

## 🧠 Decision Rules

| Temperature | Humidity | Activity |

| :--- | :--- | :--- |

| warm | dry | Play Basketball |

| warm | humid | Play Tennis |

| cold | dry | Play Cricket |

| cold | humid | Swim |

## ▶️ Example Output

```text

Enter the temperature (warm/cold): cold

Enter humidity (humid/dry): humid

Swim

```

## 📝 Explanation

* **`input()`** asks the user to enter the temperature and humidity.

* **`if`** checks whether the temperature is warm and the humidity is dry.

* **`elif`** checks other possible combinations.

* The **`and`** operator means both conditions must be true.

* **`else`** runs when none of the previous conditions is true.

* **`print()`** displays the recommended activity.

## 🛠️ Requirements

* Python 3.x

## 🚀 How to Run

1. Save the program as `activity_selector.py`.

2. Open a terminal or command prompt.

3. Run the following command:

   ```bash

   python activity_selector.py

   ```

## 📚 Learning Objectives

* Using `input()` to receive user input.

* Using `if`, `elif`, and `else` statements.

* Applying the logical operator `and`.

* Making decisions based on multiple conditions.

## 📄 License

This project is for educational purposes.

---

# 中文程式說明

這個程式會根據使用者輸入的溫度（Temperature）和濕度（Humidity），決定要進行哪一種活動。

## 判斷規則

* **溫暖（warm）＋乾燥（dry）**：打籃球（Play Basketball）。

* **溫暖（warm）＋潮濕（humid）**：打網球（Play Tennis）。

* **寒冷（cold）＋乾燥（dry）**：打板球（Play Cricket）。

* **寒冷（cold）＋潮濕（humid）**：游泳（Swim）。

## 重要語法

* **`if`**：判斷第一個條件是否成立。

* **`elif`**：當前面的條件不成立時，繼續判斷其他條件。

* **`else`**：當前面所有條件都不成立時，執行最後的指令。

* **`and`**：表示兩個條件必須同時成立。

```