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最新推荐文章于 2023-02-10 18:24:31 发布

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博客涵盖了多个Python编程相关操作，包括判断质素、使用匿名函数、计算阶乘、处理集合子集与差集、计算交集长度、列表元素相加、字符串处理、矩阵列输出、字典合并、斐波那契数列计算、列表排序与合并等内容。

是否为质素

def isPrime(n):
    r=True
    for i in range(2,n):
        if n%i==0:
            r=False
    return r
isPrime(19)

匿名函数

def p():
    poly=lambda  x,y,z:1+2*x+y*y+z*y
    print(poly(1,2,3))
p()

计算50的阶乘

import math
def ma():
    result = math.factorial(50)
    print(result)
ma()

是否为子集,并输出差集

def subset(set1,set2):
    Y=set1.issubset(set2)
    answer = [Y,set2-set1]
    return answer
print(subset({1,2,3},{1,2,3,4,5}))

交集的长度

def intersect(set1,set2):
    answer = len(set1&set2)
    return answer
print(intersect({1,2,3},{3,4,5}))

两个列表元素相加

def add(lis):
    answer=[lis[0][i]+lis[1][i] for i in range(min([len(i) for i in lis]))]
    return answer
print(add([[1,2,3,4],[5,6,7]]))

字符串字母不重复

def single(string):
     answer=not [ i for i in string if string.count(i)>1]
     return answer
print(single('catC'))

矩阵列表输出某一列

def acquire(nestedlist,column):
    outcome =[nestedlist[i][column-1] for i in range(len(nestedlist)) ]
    return outcome
print(acquire([[1,2,3],[5,6,8],[9,11,15]],2))

两个字典的合并

def dic():
    dict1 = {'sky':'blue','cloud':'white'}
    dict2 = {'water':'transparent','grass':'green','rose':'red'}
    merged_dict=dict(dict1,**dict2)
    print(merged_dict)
dic()

斐波那契数列

def fic(n):
    if not isinstance(n,int):
        return 'n should be an integer'
    elif n <= 0:
        return 'n should be greater than 0'
    else:
        if n == 1:
            sequence = [0]
        if n == 2:
            sequence = [0,1]
        if n > 2:
            sequence = [int((5**(-0.5))*(((1+5**(0.5))/2)**i-((1-5**(0.5))/2)**i)) for i in range(n) ]
        return sequence
print(fic(10))

列表倒序

def nu():
    a = ['god','my','oh']
    b = a[::-1]
    print(b)
nu()

列表元素合为一个字符串

def ne():
    strlist = ['ab','cde','f']
    string = ''.join(strlist)
    print(string)
ne()

列表合并排序

def merge_list(list1,list2):
    result = list1+list2
    result.sort()
    return result
print(merge_list([2,1],[10,0]))

字符串按长度切片为列表

def separate(string, maxlength):
    result =[ string[i:i+maxlength] for i in range(0,len(string),maxlength) ]
    return result
print(separate('abcdef',2) )

字母大小写互换

def swap(s):
    swap = s.swapcase()
    return swap
print(swap('abC'))