1. basic Tuples is a sequence of immutable object. It's a sequence, just like List. However, it cannot be changed. a = (1,2,3) If a tuples only contain a object, we still need to include a comma. b = (1,) 2. accessing the value b = (1,2,3,4,5) b[0] #…

1.  Built-in Modules and Functions 1) Function def greeting(name): print("Hello,", name) greeting("Alan") 2)  import os import os os.system("dir") 2.  Number types 1)  int int, or integer, is a whole number, positive or negat…

摘要:在NeHe的OpenGL教程第43课源代码基础上,调用文泉驿正黑字体实现中文字体的显示 在OpenGL中显示汉字一直是个麻烦的事情,很多中文书籍的文抄公乐此不疲地介绍各种方法及其在windows下的代码实现.此处不在赘述,有兴趣的可以参考下面的文章: OpenGL点阵字体绘制终极解决方案!哈! 下面的代码是在NeHe教程第43课的基础上,添加了中文字体显示功能,原则上只要字体库支持,任何unicode字符串都是可以显示的 btw,unbutu下字体库文件位置:/usr/share/font…

5.3 Tuples and Sequences We saw that lists and strings have many common properties, e.g., indexing and slicing operations. They are two examples of sequence data types. Since Python is an evolving language, other sequence data types may be added. The…

12.1 Tuples are immutable(元组是不可变的)A tuple is a sequence of values. The values can be any type, and they are indexed by integers, so in that respect tuples are a lot like lists. The important difference is that tuples are immutable.Syntactically, a tu…

Lists 列表 一.基础知识 定义 >>> sList = list("hello") >>> sList ['h', 'e', 'l', 'l', 'o'] 功能函数 append # 添加一个元素 pop # 拿走一个元素 sort reverse In [11]: dir(list) Out[11]: ['__add__', '__class__', '__contains__', '__delattr__', '__delitem__',…

近期开始学习python机器学习的相关知识,为了使后续学习中避免编程遇到的基础问题,对python数组以及矩阵库numpy的使用进行总结,以此来加深和巩固自己以前所学的知识. Section One:Python数组的使用 在python中,数组这个概念其实已经被淡化了,取之的是元组和列表,下面就列表和元组进行相关的总结和使用. Subsection One: List list列表本质是一种序列类型的数据结构,有点类似于C/C++中所学的数组,但又不同.他们的相同之处在于,二者中的每个元素都分…

在python中,strings, 元组tuples, 和numbers是不可更改的对象,而list,dict等则是可以修改的对象. a = 1 def fun(a):     a = 2 fun(a) print a  # 1   a = [] def fun(a):     a.append(1) fun(a) print a  # [1]   https://github.com/taizilongxu/interview_python…

below is a good answer for this question , so I copy on here for some people need it By the way, the three forms can be combined as follows: def f(a,*b,**c): All single arguments beyond the first will end up with the tuple b, and all key/value argume…

Solution: if __name__ == '__main__': n = int(input()) integer_list = map(int, input().split()) t=tuple(integer_list) print(hash(t))…