We already know that we can unpack each of the things in each of these key-value tuples into two variables (say thing and count):>>> for item in things.items(): ... thing, count = item ... print(thing, count) ... ducks 2 lamps 3 chairs 0 ...
3. Loop into tuple 使用for循环遍历元组项。 对于循环示例 Tuple = ("a", "b", "c") for x in Tuple: print(x) 4. Check if an item exist in tuple 要检查一个元组是否包含给定的元素,我们可以使用'in'关键词和'not in'关键词。 检查项目是否存在于元组中 Tuple = ("a", "b", "c", "d...
Unpacking a Tuple When we create a tuple, we normally assign values to it. This is called "packing" a tuple: ExampleGet your own Python Server Packing a tuple: fruits = ("apple","banana","cherry") Try it Yourself » But, in Python, we are also allowed to extract the values back...
data = [((1, 2), 3), ((2, 3), 3)] for (a, b), c in data: print(a, b, c) # 1 2 3 # 2 3 3 for a, b, c in data: print(a, b, c) # ValueError: not enough values to unpack (expected 3, got 2) 用*和**定义函数 下面例子中的函数func至少需要一个名为required...
print(Tuple[3]) # ('d', 'e', 'f') print(Tuple[3][0]) # d print(Tuple[3][0:2]) # ('d', 'e') 3. Loop into tuple 使用for循环遍历元组项。 对于循环示例 Tuple = ("a", "b", "c") for x in Tuple: print(x)
print(Tuple[3][0:2]) # ('d', 'e') 3. Loop into tuple 使用for循环遍历元组项。 对于循环示例 Tuple = ("a", "b", "c") for x in Tuple: print(x) 4. Check if an item exist in tuple 要检查一个元组是否包含给定的元素,我们可以使用'in'关键词和'not in'关键词。
print(Tuple[3][0]) # d print(Tuple[3][0:2]) # ('d', 'e') 3. Loop into tuple 使用for循环遍历元组项。 对于循环示例 Tuple = ("a", "b", "c") for x in Tuple: print(x) 4. Check if an item exist in tuple 要检查一个元组是否包含给定的元素,我们可以使用’in’关键词和’not...
Unpack tuples # Unpack tuples with the lefthand side of an assignment operator one, two, three = my_tuple print("Output #97: {0} {1} {2}".format(one, two, three)) var1 = 'red' var2 = 'robin' print("Output #98: {} {}".format(var1, var2)) # Swap values between variab...
Unpacking a tuple in Python is the process by which you can extract the contents of a tuple into separate variables. There are two ways to unpack a tuple: 1. Using the assignment operator. 2. Using the destructuring (*) operator.
print('my_tuple元组中索引为1的元素:',my_tuple[1]) # 输出结果 # my_tuple元组中索引为1的元素: 2 1. 2. 3. 4. 5. 元组是不可变对象,不能尝试通过对元组的元素进行重新赋值 my_tuple = (1,2,3,4,5) # 创建了一个5个元素的元组 ...