Python函数的类型提示功能

# 函数的类型提示功能
# python 是解释型，强类型，动态类型
# name:str  age:int hobbies:tuple
#
# 无类型提示
# def  register(name,age,hobbies):
#     print(name)
#     print(age)
#     print(hobbies)
#     return 1111

# 函数的类型提示功能，整体返回成int类型
# def  register(name:str,age:int,hobbies:tuple)->int:
#     print(name)
#     print(age)
#     print(hobbies)
#     return 1111
#
# res = register(1,'aaa',[1,])
# print(res)
#
# res = register('lsj',18,('play','music'))
# print(res)

# 加入默认参数
# def  register(name:str='lsj',age:int=18,hobbies:tuple=(1,2))->int:
#     print(name)
#     print(age)
#     print(hobbies)
#     return 1111
#
# res = register('lsj',18,('play','music'))
# print(res)
#
# print("=============================")
# res = register()  # 不传参
# print(res)

# :冒号后跟的是提示信息
def  register(name:'必须传入名字',age:111,hobbies:'必须传入元组')->'返回的是整型int':
    print(name)
    print(age)
    print(hobbies)
    return 1111

res = register('lsj',18,('play','music'))
print(res)


# 查看提示信息功能
print(register.__annotations__)
# {'name': '必须传入名字', 'age': 111, 'hobbies': '必须传入元组', 'return': '返回的是整型int'}