我们可以创建一个函数来列出费氏数列 def fib(n): # write Fibonacci series up to n... Print a Fibonacci series up to n.... a, b = 0, 1... while a n:... print(a, end= )... a, b = b, a+b... print()... # Now call the function we just defined:...
首先创建一张实验用的一张表 drop table if exists t_student; create table t_student( id int primary key auto_increment, name varchar(20) not null comment 姓名, birthday date comment 生日)Engine=InnoDB default charset utf8; insert into t_stud
pathon中的函数可以使用不定长参数,可以用参数*args接收单个出现的参数,接收后存成一个元组;用**kwargs接收以键值对形式出现的参数,接收后存丰一个字典.下面的小程序能说明这个问题 代码如下: def print_info(*args,**kwargs): for i in args: print(i) for
函数定义 def input(*args, **kwargs): # real signature unknown Read a string from standard input. The trailing newline is stripped. The prompt string, if given, is printed to standard output without a trailing newline before reading input.
自定义函数的使用 import numpy as npimport pandas as pd# todo 将自定义的函数作用到dataframe的行和列 或者Serise的行上ser1 = pd.Series(np.random.randint(-10,10,5),index=list(abcde))df1 = pd.DataFrame(np.random.randint(-10,10,(4,5)),index=list