Now what if we desired a function that computed both squares and cubes and returned them both? How can we do that? A Python function can only return one object, not two. The solution is to package the square and cube into a single tuple and return the tuple. ...
return a # 返回a函数的内存地址 print(b) # 打印b函数的内存地址 1. 2. 3. 4. 5. 6. return a() 的情况: 尽管这次return的是a() ,但由于b()函数并没有调用,仍然还是打印两个函数的内存地址 5,函数中的 return中的内容是常量和变量(可执行的函数)的情况下的函数执行问题 return中为一个常量时: ...
2 return 1,2 3 4 def f(): 5 return (1,2) 1. 2. 3. 4. 5. 如果将函数调用的返回值赋值给对应个数的变量,它会一一对应的赋值,这很容易理解。下面是等价的: 1 a, b = f() # a=1, b=2 2 (a, b) = f() 1. 2. 如果赋值给一个变量,将会把整个元组赋值给变量。下面是等价的,a表...
1、return语句 可以返回多个值,以逗号分隔,实际返回的是一个tuple。 2、两个语法 return a,b,省略括号 return (a,b),未省略括号 3、返回值 都是一个tuple对象 4、实现返回多个值实例 def fact(n,m=1): s=1 for i in range(1,n+1): s*=i return s//m,n,m 以上就是python中用return实现返回...
One especially important use case is when you want to return more than one object from your Python function. 在这种情况下,您通常会将所有这些对象包装在一个元组对象中,然后返回该元组。 In that case, you would typically wrap all of those objects within a single tuple object, and then return th...
def choose(bool, a, b): return (bool and [a] or [b])[0] 因为 [a] 是一个非空列表,它永远不会为假。甚至 a 是 0 或 '' 或其它假值,列表[a]为真,因为它有一个元素。 7.how do I iterate over a sequence in reverse order
You’ll learn how to define them and how to manipulate them. When you’re finished, you should have a good feel for when and how to use these object types in a Python program.Take the Quiz: Test your knowledge with our interactive “Python Lists and Tuples” quiz. Upon completion you...
Python-简版List和Tuple Python列表Python list is a sequence of values, it can be any type, strings, numbers, floats, mixed content, or whatever. In this post, we will talk about Python list functions and how to create, add elements, append, reverse, and many other Python list functions....
sqrt(delta))/(2*a) print(f'方程有两个不同的实数根:x1={x1:.1f}, x2={x2:.2f}') return x1, x2 else: # print(f'方程无解') # 一下的代码是高中之后的知识。 # delta < 0有两个虚根 real_part = -b / (2*a) imaginary_part = math.sqrt(-delta) / (2*a) x1 = complex(...
test_str = "Hello world" test_ls = [i for i in range(1, 11)] test_tuple = (1, 2, 3, 4, 5, 6) test_set = {1, 2, 3, 4, 5, 6, 7} test_dict = {"apple": 1, "banana": 2, "cherry": 3} print(f"test_str_len: {len(test_str)}\ntest_ls: {len(test_ls)}\...