python100例

 

Python是一种简单易学的编程语言，被广泛应用于各种领域，如Web开发、数据分析、人工智能等。为了帮助大家更好地掌握Python编程，今天我将为大家分享100个Python编程实例，希望能给大家一个全面的了解和实践的机会。

 

1. 打印"Hello

World!"

```python

print("Hello

World!")

```

 

2. 计算两个数的和

```python

a = 2

b = 3

sum = a + b

print("The sum of a and b is:"

sum)

```

 

3. 判断一个数是偶数还是奇数

```python

num = 4

if num % 2 == 0:

print(num

"is even")

else:

print(num

"is odd")

```

 

4. 计算一个数的阶乘

```python

num = 5

factorial = 1

for i in range(1

num + 1):

factorial *= i

print("The factorial of"

num

"is:"

factorial)

```

 

5. 判断一个数是否为质数

```python

num = 7

is_prime = True

for i in range(2

num):

if num % i == 0:

is_prime = False

break

if is_prime:

print(num

"is a prime number")

else:

print(num

"is not a prime number")

```

 

6. 翻转一个字符串

```python

s = "hello"

reversed_s = s[::-1]

print("The reversed string is:"

reversed_s)

```

 

7. 找出一个列表中的*值和最小值

```python

nums = [1

3

5

7

9]

max_num = max(nums)

min_num = min(nums)

print("The maximum number is:"

max_num)

print("The minimum number is:"

min_num)

```

 

8. 计算两个列表的交集

```python

list1 = [1

2

3

4

5]

list2 = [4

5

6

7

8]

intersection = list(set(list1) & set(list2))

print("The intersection of list1 and list2 is:"

intersection)

```

 

9. 将一个字符串中的字符按照字母顺序排列

```python

s = "cbade"

sorted_s = ''.join(sorted(s))

print("The sorted string is:"

sorted_s)

```

 

10. 计算斐波那契数列的前n项

```python

def fibonacci(n):

if n <= 1:

return n

else:

return fibonacci(n-1) + fibonacci(n-2)

 

n = 5

fibonacci_seq = [fibonacci(i) for i in range(n)]

print("The Fibonacci sequence of"

n

"terms is:"

fibonacci_seq)

```

 

这些实例只是Python编程的冰山一角，通过练习这些实例，你可以逐步提升自己的编程能力，掌握更多Python编程的技巧和应用。希望大家能够坚持练习，不断提升自己的编程水平，让Python成为你的得力工具！