Python programming quickly get started with tedious work-6.6 exercises

Python programming quickly get started with tedious work-6.6 Exercise 1, what is an escape character?

A: The escape character represents some characters in a string that are otherwise difficult to print in the code.

2. What does the escape character \ n and \ t represent?

Answer: \ n is a newline character, \ t is a tab.

3, how to put a slash character in the string \?

A: the \ Transfer character represents a backslash.

4, the string "howl ' s Moving Castle" is a valid string. Why is the single quotation mark in the word not escaped, but no problem?

A: Howl's single quotation marks are fine because you use double quotation marks to identify the beginning and end of a string.

5. If you don't want to add \ n to the string, how do I write a string with a newline?

A: A multiline string lets you use a newline character in a string without having to use \ n escape characters.

6. What is the expression evaluated below?

' Hello world! ' [1]
' Hello world! ' [0:5]
' Hello world! ' [: 5]
' Hello world! ' [3:]

Answer: ' Hello world! ' [1] = e   'Hello world! ' [0:5] = Hello'Hello world! ' [: 5] = Hello'Hello world! ' [3:] = Lo world!

7. What is the expression evaluated below?

' Hello '. Upper ()
' Hello '. Upper (). Isupper ()
' Hello '. Upper (). Lower ()
For:

' Hello '. Upper () = Hello'hello'. Upper (). Isupper () = True' Hello '. Upper (). lower () = Hello

8. What is the expression evaluated below?

' Remember, Remember, the fifth of Novermber '. Split ()
' _ '. Join (' There can be is only one. '). Split ()

Answer:'Remember, Remember, the fifth of Novermber'. Split () = ['Remember,','Remember,',' the','Fifth',' of','Novermber']'_'. Join ('There can is only one.'). Split ()'_'. Join ('There can is only one.'). Split () = ['t_h_e_r_e_','_c_a_n_','_b_e_','_o_n_l_y_','_o_n_e_.']

9. What string method can be used for right-aligned, left-aligned, and centered strings?

For:
Rjust () is right-justified
Ljust () is left justified
Center () is centered

10. How do I get rid of whitespace characters at the beginning or end of a string?

For:
Strip () is a blank character that is removed from both ends

6.7. Practical Project-form printing

Write a function named PrintTable () that accepts a list of strings and displays it in a well-organized table, with each column
Align to the right. Assume that all inner-level lists contain the same number of strings. For example, the value might look like this:
Tabledata = [[' Apples ', ' oranges ', ' cherries ', ' banana '],
[' Alice ', ' Bob ', ' Carol ', ' David '],
[' Dogs ', ' cats ', ' Moose ', ' goose ']

Your printtable () function will print out:
Apples Alice Dogs
Oranges Bob Cats
Cherries Carol Moose
Banana David Goose

Idea: Use Colwidths as a list to save the width of the longest string in a given list, find the maximum value in the Colwidths list,
Passed to the Rjust () string method.

#!/usr/bin/env Python3#-*-coding:utf-8-*-#Author:davie"""6.7. Practice Item-Form print a function named PrintTable () that accepts a list of strings, displays it in a well-organized table, and aligns each column to the right. Assume that all inner-level lists contain the same number of strings.            For example, the value might look like this: Tabledata = [[' Apples ', ' oranges ', ' cherries ', ' banana '], [' Alice ', ' Bob ', ' Carol ', ' David '], [' Dogs ', ' cats ', ' Moose ', ' goose '] Your printtable () function will print out: Apples Alice dogs oranges Bob catscherries Carol moose Banana David Goose"""Tabledata= [['Apples','oranges','Cherries','Banana'],            ['Alice','Bob','Carol','David'],            ['Dogs','Cats','Moose','Goose']]defprinttable (tabledata): Len_list=[0,0,0] forIndex, iteminchEnumerate (tabledata): forStrinchItem:ifLen (str) >Len_list[index]: Len_list[index]=len (str)#print (len_list)         forSeqinchRange (len (tabledata)):Print(Tabledata[0][seq].rjust (len_list[0]), tabledata[1][seq].rjust (len_list[1]), tabledata[2][seq].rjust (len_list[2])) printtable (tabledata)

Python programming quickly get started with tedious work-6.6 exercises