python print dictionary pretty

,' Jcodeer ']print L#输出结果: [1, 2, 3, 4, ' Jcodeer ']#于list直接打印即可" ' 6. Out dictionary (dictionary) '{1:' A ',2:' B ',3:' C ',4:' d '}print D #输出结果: {1: ' A ', 2: ' B ', 3: ' C ', 4: ' D '}#同Python is also supported by dictionary

The example of this article summarizes the common operation methods of Dict dictionary in Python. Share to everyone for your reference. Specifically as follows: The following Python code shows the common operation of the dictionary in Python, the

#author: Zhouyu#Dictionaries, which are often used in Python, are stored in Key:value,# It's unordered, unlike our dictionary, the dictionary is enclosed in curly braces {}A= {' Name ': ' Zhouyu ',' age ':22,' sex ': ' Male ',' QQ ': ' 1090139534 '}#打印出字典Print(A)#打印指定的key的valuePrint(A[' name '])#修改keyA[' name '] = ' Zh

is ZY"You can also use single quotesSTR = 'My name is ZY'You can also use three quotation marks.STR = ''' sent to and sent to non ''' Other methods can be seen through help (string). I will not repeat it.Here are some special usage instructions.String. startswith (STR): indicates whether the string starts with a certain string. If yes, true is returned.String. Find (STR): searches for a string in the string and returns the true result.If 'str' in name: This is another way of writing the above

Python uses the item () method to traverse the dictionary. There are several methods to traverse the Python dictionary. One of them is for... in, which I will not explain. It is almost everywhere in Python. The Traversal method described below is the item () method. Item ()

This article mainly introduces the dictionary traversal memo in Python. This article lists a variety of dictionary traversal methods, which are suitable for beginners to view and briefly explains the differences between interitems and iterms, for more information, see how to traverse the dictionary in

Basic composition and usage of the Python dictionary #! /Usr/bin/env python#-*-Coding: UTF-8 -*-"""Old Rules: Environment 2.7.x in the following method. Please remember the print format (the output content should be placed in parentheses) for users of version 3.x or later)Basic composition and usage of dictionariesDict

'}If you have this primary key, change the element of age to 13 Del Dict[x] Delete the element, delete the element only need to delete the corresponding component to delete the element, when the deleted element is not in the dictionary, return error a = { ' name ' : " DEMONLG ' , ' 123131 ' : , ' 32313 ' : " 2222 ' , ' 4343 ' : "} del a[ ' 1233 ' ] print (a) File "e:/

are very similar, support negative index, Shard, multivariate listnames=['Michale','Bob','TRACY'] forIinchnames:Print(i) Note: Circular output List Names=('Michale','Bob','TRACY') forIinchnames:Print(i) Note: cyclic output tuples(2) Find, sort, reverseFind (2 ways). The index method returns the position of the element in the list, and "in" to determine whether the element is in the list.List = ['Apple','Banana','Grange','Orange','Anguo','C + +']Print

Today, the Python dictionary has been specifically tested for performance results in comparison with various methods.The test code is as follows:1 defdict_traverse ():2 fromTimeImportClock3My_dict = {'name':'Jim',' Age':' -','Height':'180cm','Weight':'60kg'}4 5T_start =clock ()6 forKeyinchMy_dict:#worst-performing notation. No optimization7 Print