当你想从函数中得到一个结果并用这个结果继续在其他地方执行时,可以使用return后紧跟着返回的值。 def add(a, b): return a + b result = add(2, 3) # result 将会得到值 5 1.2不带任何表达式 如果return后面没有任何表达式,那么函数将返回None。None是 Python 中一个特殊的类型,表示没有值。 def do_n...
a = x % y b = (x-a) / y return ( a,b ) # 也可以写作 return a, b (c, d )= F1( 9, 4) # 也可以写作 c , d = F1 ( 9, 4 ) print c ,d 结果显示:1, 2 Python与大多数其它语言一样有局部变量和全局变量之分, 但是它没有明显的变量声明。变量通过首次赋值产生, 当超出作用范...
print(result[1]) # 输出: 5 3. 使用字典(Dictionary)返回多个值 当返回的多个值需要带有标签或名称时,使用字典是一种很好的方式。字典允许我们通过键来访问值,这在处理多个返回值时提供了更好的可读性。 例如: ```python def calculate(a, b): return {'sum': a + b, 'difference': a - b} resul...
Python dictionaries are versatile data structures that use key-value pairs to store information. Each key maps to a corresponding value, allowing for efficient data retrieval by key search. Keys are unique within the dictionary, while values may not be unique. Creating a dictionary in Python invol...
The return value of a Python function can be any Python object. Everything in Python is an object. So, your functions can return numeric values (int, float, and complex values), collections and sequences of objects (list, tuple, dictionary, or set objects), user-defined objects, classes,...
Note: You should never do var = get_mother(), since let us assume var is a dictionary and you iterate by var.items() it will give an error citing None has no method items(). It you intentionally return None then it must be taken care of in the calling function appropriately. Using...
python中return会打破循环 本文涵盖的主题 (Topics Covered in This Article) Image by Author 图片作者 定义功能 (Defining Functions) Function definition starts with keyworddeffollowed by the function name and a parenthesized list of formal parameters. The statements that form the body of the function ...
有些时候,如果代码写得有问题,会让程序陷入“死循环”,也就是永远循环下去。这时可以用Ctrl+C退出程序,或者强制结束Python进程。 字典dict dict全称dictionary,在其他语言中也称为map,使用键-值(key-value)存储,具有极快的查找速度。 我们要查某一个字,一个办法是把字典从第一页往后翻,直到找到我们想要的字为止...
Here's an example of how you can return a dictionary entry as a primitive in Python: ```python def create_dict_entry(key, value): return (key, value) # Example usage: key = "example_key" value = "example_value" entry = create_dict_entry(key, value) print(entry) # Output: ('ex...
对象的集合和序列（list、tuple、dictionary）set定义（对象、类、函数）模块或包 返回值都是 None 的...