python代码大全简单

admin 36 0

我可以为您提供一些简单的Python代码示例,这些示例涵盖了从基础到中级的各种概念。

1. **打印 "Hello, World!"**

print("Hello, World!")

2. **变量和算术运算**

a = 5
b = 10

sum = a + b
difference = a - b
product = a * b
quotient = b / a

print("Sum:", sum)
print("Difference:", difference)
print("Product:", product)
print("Quotient:", quotient)

3. **条件语句**

x = 10

if x > 5:
    print("x is greater than 5")
elif x < 5:
    print("x is less than 5")
else:
    print("x is equal to 5")

4. **循环**

for i in range(5):
    print(i)

# While loop
i = 0
while i < 5:
    print(i)
    i += 1

5. **列表**

fruits = ["apple", "banana", "cherry"]

for fruit in fruits:
    print(fruit)

# Adding an element to the list
fruits.append("orange")
print(fruits)

6. **字典**

person = {
    "name": "John",
    "age": 30,
    "city": "New York"
}

print(person["name"])
print(person["age"])

7. **函数**

def greet(name):
    print("Hello, " + name + "!")

greet("Alice")

8. **列表推导式**

squares = [x**2 for x in range(10)]
print(squares)

这些只是Python编程的一些基础示例,Python是一种非常强大且灵活的语言,可以执行更复杂的任务,如文件操作、网络编程、数据库接口、图形界面开发、科学计算等,如果您对某个特定主题或概念有疑问,欢迎随时提问。