Here, I would like to recommend the wechat public account “Python Geek Mind”, which will continue to post a variety of high-paying positions in Big Factory, including but not limited to Python positions. Welcome you to exchange ideas ~~. 1, a line of code to achieve the sum of 1-100
How do I modify global variables inside a function
List the five Python standard libraries
How do dictionaries delete keys and merge two dictionaries
Talk about Python’s GIL
6. Python implements list de-duplication
7, Fun (args,**kwargs) args,**kwargs what to mean?
Python2 and Python3 range (100)
9, a sentence to explain what kind of language can use decorators?
What are the built-in data types in Python
11. Describe the differences between __new__ and __init__ in object orientation
12, Describe with method open processing file help me what do we do?
13. List [1,2,3,4,5], please use map() function to output [1,4,9,16,25], and use list derivation to extract numbers greater than 10, finally output [16,25]
Python generates random integers, random decimals, and decimal methods between 0 and 1
Which letter is added to the string to represent the original string?
16,
Example of an assertion method in Python
Mysql > select * from student where id,name,score,city from student; mysql > select * from student where id,name,score,city from student
10 Common Linux commands
What is the difference between PYTHon2 and Python3? List five
21. List mutable and immutable data types in Python, and briefly explain how they work
22, s = “ajLDJlaJFDLJFDDd”, undo and sort from small to large output “adfjl”
23. Multiply two numbers by lambda functions
24, dictionaries according to the key smallest dict = {” name “:” zs “, “age” : 18, “city”, “shenzhen”, “tel” : “1362626627”}
25. Count the number of occurrences of each word of the string using the Collections library’s Counter method. ldsjafl; hdsllfdhg; lahfbl; hl; ahlf; H”
26, string A = “not 404 found zhangsan 99 Shenzhen”, each word is blank, use the regular filter to filter out English and numbers, and finally output “Zhangsan shenzhen”.
A = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]
A = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10] a = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]
29, re.complie function
30. What types of data are a= (1,) B =(1) and C =(” 1 “) respectively?
Merge two lists [1,5,7,9] and [2,2,6,8] into [1,2,2,3,6,7,8,9]
Delete files using Python and delete files using Linux commands
33. In the log, we need to record the occurrence time of error and warning with time stamps. Please print the current time stamp “2018-04-01 11:38:54” with datetime module.
Database optimization query method
35, Please list any open source library that you know how to draw a graph (bar chart, line chart, etc.), or a third party
Write a custom exception code
37, regular expression matching, (.) And (?) Match the difference?
Briefly describe Django’s ORM
39,[[1,2],[3,4],[5,6]]
40, x = “ABC”, y = “def”, z = [” d “, “e”, “f”], respectively calculate x.j oin (y) and x.j oin (z) returns the result
41. Illustrate the significance of try except else finally in exception modules
42. Swap two values in Python
43, Illustrate the zip () function
44, a= “zhang Ming 98 points”, use re.sub, replace 98 with 100
45, write 5 common SQL statements
46. A = “hello” and b= “hello” are encoded as bytes
What is the result of [1,2,3]+[4,5,6]?
Ways to make Python more efficient
49. Describe the differences between mysql and Redis
50. How to deal with bugs
Match the date 2018-03-20, 51, 1, regular url = ‘sycm.taobao.com/bda/trading…
50, list=[2,3,5,4,9,6]
53. Write a single column schema
A = “%.03f” %1.3335; a= “%.03f” %1.3335; a= “%.03f” %1.3335;
55. Find the print results of the three methods
56, List common status codes and meanings
57. Describe the performance optimization of Web projects from the front end, back end and database respectively
Dic ={” name “:” zs “, “age” :18} dic={” name “:” zs “, “age” :18}
59, List common MYSQL data storage engines
60, calculation code to run as a result, the zip function history articles have already said, it is concluded that [(” a “, 1), (” b “, 2), (” c “, 3), (” d “, 4), (” e “, 5)]
61. Briefly describe the same origin policy
62. Explain the difference between cookies and sessions
Brief description of multi-threading, multi-process
64. Briefly describe the any() and all() methods
What exceptions do IOError, AttributeError, ImportError, IndentationError, IndexError, KeyError, SyntaxError and NameError represent respectively
66, The difference between copy and deepcopy in Python
List several magic methods and briefly introduce their uses
66, C:\Users\ry-wu.junya\Desktop>python 1.py 22 33 Print (sys.argv)
[I for I in range(3)] [I for I in range(3)
70, a = “hehheh”, remove the trailing space
Sort =[0,-1,3,-10,5,9]
72 order of the list, foo = [5,8,0,4,9-4, 20, – 2,8,2, 4], using the lambda function smallest
73, using the lambda function to sort the list foo = [5,8,0,4,9-4, 20, – 2,8,2, 4], the output of [0,2,4,8,8,9, 2, 4, 4, 5, 20], positive, since the negative from big to small
74, List nested dictionary sort by age and name respectively
75, lists are nested tuples, sorted alphabetically and numerically
76, list nested list sort, age number the same how to do?
Sort dictionary by key (zip function)
SQL > select * from ‘zip’;
List derivations, dictionary derivations, generators
80, the last test question, according to the length of the string sort, see whether the flexible use of sorting
81, Illustrate SQL injection and solutions
82, s= “info:xiaoZhang 33 shandong”, with the regular shard string output [‘ info ‘, ‘xiaoZhang’, ’33’, ‘shandong’]
83. Matches email addresses ending with 163.com
84. Recursive summation
Python dictionary and JSON string conversion methods
86. Differences between MyISAM and InnoDB:
87. Count the number of occurrences of a character in a string
88. String conversion to case
89, Use two ways to blank
90. Re matches not phone numbers ending in 4 and 7
91. Briefly describe the Python reference counting mechanism
92,int(” 1.4 “),int(1.4)
93. List more than three PEP8 codes
The regular expression matches the first URL
Regular match Chinese
96. Briefly describe optimistic and pessimistic locks
97, r, r+, rb, rb+ file opening mode difference
98, Linux command redirection > and >>
99. The regular expression matches
www.itcast.cn
100. Does Python pass parameters by value or by address?
Find the intersection, difference, and union of two lists
Generate a random number from 0 to 100
103. Benefits of lambda anonymous functions
Common network transport protocols
105, single quotation marks, double quotation marks, triple quotation marks usage
106. Python garbage collection mechanism
107. The difference between GET and POST in HTTP requests
108, How to read Excel files in Python
Describe multithreading and multiprocessing
110. Search and match in Python re