#新列表

python 列表元素统计出现的次数并输出字典

 importcollectionsmy_list=[10,10,10,10,20,20,20,20,40,40,50,50,30]print("OriginalList:",my_list)ctr=collections.Counter(my_list)print("Frequencyoftheelemen...

python 列表求和

 defsum_list(items):sum_numbers=0forxinitems:sum_numbers+=xreturnsum_numbersprint(sum_list([1,2,-8])) ...
代码星球 ·2020-08-09

python 列表元素的筛选

 color=['Red','Green','White','Black','Pink','Yellow']color=[xfor(i,x)inenumerate(color)ifinotin(0,4,5)]print(color) ...
代码星球 ·2020-08-09

python 输出所有列表元素的乘积

 defmultiply_list(items):tot=1forxinitems:tot*=xreturntotprint(multiply_list([1,2,-8]))  ...

python 获取列表大于指定长度的元素

 deflong_words(n,str):word_len=[]txt=str.split("")forxintxt:iflen(x)>n:word_len.append(x)returnword_lenprint(long_words(3,"Thequickbrownfoxjumpsoverthel...

python 判断列表字符串元素首尾字符是否相同

 defmatch_words(words):ctr=0forwordinwords:iflen(word)>1andword[0]==word[-1]:ctr+=1returnctrprint(match_words(['abc','xyz','aba','122771'])) ...

python 通过列表元素值截取列表并获取长度

 defcount_range_in_list(li,min,max):ctr=0forxinli:ifmin<=x<=max:ctr+=1returnctrlist1=[10,20,30,40,40,40,70,80,99]print(count_range_in_list(list1,40,1...

python 判断两个列表是否有公共元素

 defcommon_data(list1,list2):result=Falseforxinlist1:foryinlist2:ifx==y:result=Truereturnresultprint(common_data([1,2,3,4,5],[5,6,7,8,9]))print(common_data...

python 获取列表的键值对

 nums=[5,15,35,8,98]fornum_index,num_valinenumerate(nums):print(num_index,num_val) ...
代码星球 ·2020-08-09

python 判断列表的包含关系

 defis_Sublist(l,s):sub_set=Falseifs==[]:sub_set=Trueelifs==l:sub_set=Trueeliflen(s)>len(l):sub_set=Falseelse:foriinrange(len(l)):ifl[i]==s[0]:n=1while(...

python 列表字符串元素乱序

 fromrandomimportshufflecolor=['1','2','3','4','5']shuffle(color)print(color) ...

python 将一个列表乱序

 importrandomnums=[1,2,3,4,5,6,7]random.shuffle(nums)print(nums) ...
代码星球 ·2020-08-09

python 元组列表合并

 #createatuplel=[(1,2),(3,4),(8,9)]print(list(zip(*l))) ...
代码星球 ·2020-08-09

python 元组列表转为字典

 #createalistl=[("x",1),("x",2),("x",3),("y",1),("y",2),("z",1)]d={}fora,binl:d.setdefault(a,[]).append(b)print(d) ...

python 删除列表中的字典元素

 data={"data":[{"end_point":[-2.45,5.04],"hotelid":"demo_one","begin_point":[-4.37,6.36],"name":"a5","floor":"1"},{"end_point":[-2.45,5.04],"hotelid":"demo...
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