delete last element of list python

list0=[' B ', ' C ', ' d ', ' B ', ' C ', ' A ', ' a ']Method 1: Use Set ()# sorted Output Print (List1)Method 2: Use {}.fromkeys (). Keys ()list2={}.fromkeys (list0). Keys ()print(list2)Method 3:set () +sort ()list3=List (set (LIST0)) List3.sort (Key=list0.index)print(LIST3)Method 4: IterateList4=[] for in list0: if not in list4: List4.append (i)print(LIST4)Method 5: Compare the data of adjacent 2 elements after sorting, repeat deletedef so

Requirements Description:1, the current directory has a lot of folders, files, statistics/usr/local/This directory, if it is a folder, to delete/usr/local/F1 W1 F2 W2 W3 W4 F4W1 W2 W10.txtRequirements Analysis:1, first list all the files in the directory, with Os.listdir ()2, determine if it is a file, Os.path.isfile ()ImportOsf_dir=OS.GETCWD ()#Get current directoryL_dir=os.path.join (F_dir,'usr\local')#st

The index of the list (subscript) starts at 0 and the last one can be represented by-1.1. Add ( append (), insert ())2. Delete (pop (), remove (), Del, Clear ())Stus.pop () #默认删除最后一个Stus.pop (1) #删除指定位置Stus.remove (' Nancy ') #删除list中某个元素, with repeated words, delete the first oneDel Stus[-1] #删除指定下标的元素Stus.clear () #清

In the premise does not know B in this array subscript, delete b this elementvar arrlist = [' A ', ' B ', ' C ', ' d ']; Arrlist.splice (Jquery.inarray (' B ', arrlist), 1);alert (arrlist);where Jquery.inarray (' B ', arrlist) is the position of this element in the array arrlist the first parameter in the splice (index,1) function is the position of the element t

Successful}//delete the I data element of L and return its value with E//Note that this is *e, not E, which is different from the variable e in the insert.Status List_link_delete (linklist *l,intI, Elemtype *D) { intj=1; Linklist p, q; P= *L; while(P->nextj//Traverse to find the first element of I{p= p->Next; ++J; } if(! (P->next) | | J >i)returnERROR;

', ' Beidou dan Yuan-june ' star ', ' Beidou Polar Star June ', ' Beidou day close Broken Army star June ']print ( Newmember.count (' Beidou Day close the Army star June ') "#扩充为原来的三倍newmember *=3print (newmember.count (' Beidou Day Guan June)")Result——————————————————————————————————————————The essence of the blog, in the technical part, more in the town yard a Poem. Python version 3.5, system Windows7.Python