import osimport sysimport pygamefrom cfg import *from modules import *from fractions import Fraction '''检查控件是否被点击'''def checkClicked(group, mouse_pos, group_type='NUMBER'): selected = [] # 数字卡片/运算符卡片 if grou
prec += 2 i, lasts, s, fact, num, sign = 0, 0, 1, 1, 1, 1 while s != lasts: lasts = s i += 2 fact *= i * (i-1) num *= x * x sign *= -1 s += num / fact * sign getcontext().prec -= 2 return +s def sin(x): """Return the sine of x as measured ...
Strings can beconcatenatedto build longer strings using the plus sign and also they can bemultipliedby a number, which results in the continuous repetition of the string as many times as the number indicates. Also, if we want to find out thelengthof the string, we simply have to use thelen...
Int, or integer, is a whole number, positive or negative, without decimals, of unlimited length. Example Integers: x =1 y =35656222554887711 z =-3255522 print(type(x)) print(type(y)) print(type(z)) Try it Yourself » Float
'get_version', 证书版本 'has_expired', 证书是否已经过期 'gmtime_adj_notAfter', 'gmtime_adj_notBefore', 'set_issuer', 'set_notAfter', 'set_notBefore', 'set_pubkey', 'set_serial_number', 'set_subject', 'set_version', 'sign', ...
正所谓“一图胜千言”,数据可视化是数据科学中重要的一项工作,在面对海量的大数据中,如果没有图表直观的展示复杂数据,我们往往会摸不着头脑。通过可视化的图表可以直观了解数据潜藏的重要信息,以便在业务和决策中发现数据背后的价值! 常用的可视化库 1、Matplotlib ...
在IDLE中创建一个名称为sign _get.py 的文件,然后在该文件中创建两个字典,一个保存名字和星座,另一个保存星座和性格特点,最后从这两个字典中取出相应的信息组合出想要的结果,并输出。 代码如下: 1name =['绮梦','冷伊一','香凝','黛兰']#作为键的列表2sign_person =['水瓶座','射手座','双鱼座','...
对于数值数据,pandas使⽤浮点值NaN(Not a Number)表示缺失数据。 我们称其为哨兵值,可以⽅便的检测出来: In [10]: string_data = pd.Series(['aardvark', 'artichoke', np.nan, 'avocado']) In [11]: string_data Out[11]: 0 aardvark 1 artichoke 2 NaN 3 avocado dtype: object In [12]: ...
str(weakref.getweakrefs(lotr)) rlist_num = str(weakref.getweakrefs(num)) print("number of ...
#Generate random number to be used as node_id self.node_id = str(uuid4()).replace('-', '') #Create genesis block self.create_block(0, '00') def register_node(self, node_url): """ Add a new node to the list of nodes """ ... def verify_transacti...