5. python函数

name ='函数使用'

# 定义函数
def say_hello():
    print('1')
    print('12')
    print('123')


# 调用函数
say_hello()
print(name)

# 函数参数

def sum(num1, num2):
    res = num1 + num2
    print(res)

sum(1,2)

# 函数返回值
def sum1(num1,num2):
    return num1 + num2

result = sum1(2,3)
print(result)

# 函数嵌套
def test():
    print('*test' * 50)

def test1():
    print('test11')
    test()
    print('_'*50)

test1()

# 引用模块
import python模块
print(python模块.name)
python模块.test()

#python模块
name='小明'

def test():
    print('名字', name)