Python 是一种高级编程语言，以其清晰的语法和代码可读性而闻名。以下是一
些基本的 Python 例程，涵盖了不同的编程概念和任务：
### 1. Hello World 程序
```python
print("Hello, World!")
```
### 2. 变量和基本运算
```python
x = 5
y = 3
sum = x + y
difference = x - y
product = x * y
quotient = x / y
print("Sum:", sum)
print("Difference:", difference)
print("Product:", product)
print("Quotient:", quotient)
```
### 3. 条件语句
```python
age = 20
if age >= 18:
print("You are an adult.")
elif age >= 13:
print("You are a teenager.")
else:
print("You are a child.")
```
### 4. 循环
```python
# For 循环
for i in range(5):
print(i, "times 5 is", i * 5)
# While 循环
count = 1
while count <= 5:
print("Count is:", count)
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