Note:The number of variables must match the number of values in the tuple, if not, you must use an asterisk to collect the remaining values as a list. Example Assign the rest of the values as a list called "red"
You can also have nested lists and nested tuples or a combination of them, like a list of tuples.The most notable difference between lists and tuples is that lists are mutable, while tuples are immutable. This feature distinguishes them and drives their specific use cases....
所以在往 pyc 文件里写入数据之前，必须先写入一个标识，诸如 TYPE_LIST, TYPE_TUPLE, TYPE_DICT 等等，这些标识正是对应的类型信息。如果解释器在 pyc 文件中发现了这样的标识，则预示着上一个对象结束，新的对象开始，并且也知道新对象是什么样的对象，从而也知道该执行什么样的构建动作。当然，这些标识也是可以...
The order in which you specify the elements when you define a list is an innate characteristic of that list and is maintained for that list’s lifetime. (You will see a Python data type that is not ordered in the next tutorial on dictionaries.)...
Tuples are immutable sequences typically used to store heterogeneous data. 查看元组的最佳方式是将其作为一个由多个不同部分组成的单个对象。 The best way to view tuples is as a single object that consists of several different parts. 元组在Python编程中有很多用途。 Tuples have many uses in Python...
f.seek(0)#因为W+读取文件之后会定位在文件尾部,所以需要重新定位一下光标位置,要不无法读取print("定位之后的光标位置:%s"%(f.tell()))i=f.read()print(i)f.close()#关闭文件夹输出:C:\Python35\python.exeD:/linux/python/all_test/listandtup.py定位之前的光标位置:17定位之后的光标位置:0我要学Pyt...
Tuple unpackingisn't just for tuples. Tuple unpacking works on any iterable Here we're usingtuple unpackingto unpack a three-item tuple calledcoordinatesinto three variables: >>>coordinates=3,4,5>>>x,y,z=coordinates>>>x3 But we canalsouse tuple unpacking to unpack a list. ...
Tuple unpacking is a process whereby you can extract the contents of a tuple into separate variables. This allows you to access individual elements within the tuple without having to iterate over all the elements. To understand how to unpack tuples, let us use our tuples to represent books;...
函数:len(s),min(s),max(s),s.index(x)或s.index(x,i,j),返回序列s从i开始到j位置中第一次出现x的位置,s.count(x),返回s中出现x的总次数 元组类型及其操作:一旦创建不能被更改,tuple() 列表类型及其操作:可以随意修改,使用[]或list()创建 ...
5. Sorting a Tuple 使用语言内置sorted()方法对元组内的元素进行排序。 排序元组 Tuple = ("a", "c", "b", "d", "f", "e") sortedTuple = sorted(Tuple) print (sortedTuple) # ("a", "b", "c", "d", "e", "f") 6. Repetition and Concatenation of Tuples ...