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This article mainly explains "what are the basic Python exercises". Interested friends may wish to have a look. The method introduced in this paper is simple, fast and practical. Now let the editor take you to learn "what are the basic Python exercises?"

1. Enter a percentile score

The output grades A, B, C, D, E are required, in which 90 minutes 100 points are A _ (80) ~ 89 points, B _ (70) _ 79 points are C _ (60) _ 69 points, and below 60 points are E.

Request:

Implemented with if statement

The rationality of the score should be judged after entering the score of the percentile system, and the error information should be output for the unreasonable score.

Code:

A=eval (input ('Please enter score:') if a100 or a% 1 grade 0: print ('the result you entered is unreasonable, please check and re-enter') elif 90 > > len (A) > B=print (A [:: 3]) > > C=print (A [::-1]) > > D=print (A [: 3] + C [- 5:]) 12. Format the scientific representation corresponding to the output 0.002178 respectively

Format the scientific representation form, floating point form and percentage form corresponding to output 0.002178, respectively, and set the output width to 10, center alignment, and asterisk * filling.

Code:

X=0.002178print ("x" corresponding to the scientific representation is: ", ("% e "% x) .center (10 quotes)) print (the floating-point form of'x with 4 decimal precision is:', ('{0ve.4f} '.format (x)) .center (10cm percentile') print ('x percentage form is:', ('{0lle.2f}% 'format (xscore 100)) .center (10cm percentile)

Output:

The corresponding scientific representation of x is: 2.178000e-03

The floating point form of x with 4 decimal precision is: * * 0.0022 decimal *

The form of x percentage is: * 0.22% percentage *

13. Write a program

Enter a 1-7 number from the keyboard and format the week string name of the corresponding number. For example, enter 3 and return "what you entered is Wednesday".

Code:

N = int (input ('enter a number of 1 to 7:') if (Monday): print ("you entered Monday") elif (Monday): print ("you entered Tuesday") elif (Tuesday 3): print ("you entered Wednesday") elif (Thursday 4): print ("you entered Thursday") elif (Friday 5): print ("you entered Friday") elif ("you entered Friday") Print ("you entered Saturday") elif (Sunday 7): print ("you entered Sunday")

Output:

Enter a number 3 from 1 to 7

You entered Wednesday.

14. Digital encryption game

In the programming program, enter a 4-digit number arbitrarily from the keyboard, multiply each number in the number by 7, then take the single digit of the product result to replace the number, and finally get a new 4-digit number.

Code:

N = int (input ('enter any 4 digits:') if 1000

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