python-additions and deletions to search

# # #增删改查names = ["Zhangding", "Wangxu", "Wudong", "Cheng"] #增names. Append ("Zhangzhengxin")  #增加print ( Names) Names.insert (2, "Liu")  #插入names. Insert (1, "Shun") print (names) #删 #names.remove ("Liu") #del Names[3]print ( Names.pop ()) print (names) #改names [2] = "Wang Xu" print (Names[0::2]) #查print (names[-2]) print (names[0:]) print (names[-3:]) # Get the last 3 Elementprint (Names[:3])  #get the first 3 Elementprint (Names.index ("Wang Xu"))   #取元素的下标 # Two lists merge n2=[" Jack "," Rain "," 1 "," 6 "," a "," B "," * "]names.extend (n2) print (NAMES,N2) names.reverse ()  #旋转print (names) Names.sort ()   #排序print (names) n3 = Names.copy () #copyn4 = Namesprint ((n3), ID (names), ID (n3)) print (N4,id (names), ID (N4)) Names.pop () print ("------------") print (N3,id (names), ID (n3)) print (N4,id (names), ID (N4))

python-additions and deletions