Here, we are implementing a python program for various list operations, following operations are being performed in the list,

在這里，我們正在為各種列表操作實現python程序，正在列表中執行以下操作，

Declaring an integer list

聲明一個整數列表

Printing the complete list

打印完整列表

Printing the first element of the list

打印列表的第一個元素

Printing ith element of the list

打印列表的第i個元素

Printing elements within the given indexes

在給定索引中打印元素

Printing a specific element using negative indexing

使用負索引打印特定元素

Appending an element to the list

將元素追加到列表

Finding the index of a specific element in the list

在列表中查找特定元素的索引

Sorting the list elements

排序列表元素

Popping an element from the list

從列表中彈出一個元素

Removing specified element from the list

從列表中刪除指定的元素

Inserting an element at specified index

在指定索引處插入元素

Extending the list i.e. insert set of element (list) in the list

擴展列表，即在列表中插入一組元素(列表)

Reversing list elements

反轉列表元素

用于各種列表操作的Python代碼 (Python code for various list operation)

# Python code for various list operation# declaring a list of integers iList = [10, 20, 30, 40, 50, 60, 70, 80, 90, 100]# List slicing operations # printing the complete list print('iList: ',iList) # printing first element print('first element: ',iList[0]) # printing fourth element print('fourth element: ',iList[3]) # printing list elements from 0th index to 4th index print('iList elements from 0 to 4 index:',iList[0: 5]) # printing list -7th or 3rd element from the list print('3rd or -7th element:',iList[-7]) # appending an element to the list iList.append(111) print('iList after append():',iList)# finding index of a specified element print('index of \'80\': ',iList.index(80))# sorting the elements of iLIst iList.sort() print('after sorting: ', iList);# popping an element print('Popped elements is: ',iList.pop()) print('after pop(): ', iList);# removing specified element iList.remove(80) print('after removing \'80\': ',iList)# inserting an element at specified index # inserting 100 at 2nd index iList.insert(2, 100) print('after insert: ', iList)# counting occurances of a specified element print('number of occurences of \'100\': ', iList.count(100))# extending elements i.e. inserting a list to the list iList.extend([11, 22, 33]) print('after extending:', iList)#reversing the list iList.reverse() print('after reversing:', iList)

Output

輸出量

iList: [10, 20, 30, 40, 50, 60, 70, 80, 90, 100] first element: 10 fourth element: 40 iList elements from 0 to 4 index: [10, 20, 30, 40, 50] 3rd or -7th element: 40 iList after append(): [10, 20, 30, 40, 50, 60, 70, 80, 90, 100, 111] index of '80': 7 after sorting: [10, 20, 30, 40, 50, 60, 70, 80, 90, 100, 111] Popped elements is: 111 after pop(): [10, 20, 30, 40, 50, 60, 70, 80, 90, 100] after removing '80': [10, 20, 30, 40, 50, 60, 70, 90, 100] after insert: [10, 20, 100, 30, 40, 50, 60, 70, 90, 100] number of occurences of '100': 2 after extending: [10, 20, 100, 30, 40, 50, 60, 70, 90, 100, 11, 22, 33] after reversing: [33, 22, 11, 100, 90, 70, 60, 50, 40, 30, 100, 20, 10]

翻譯自: https://www.includehelp.com/python/program-for-various-list-operations.aspx

總結

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