Python exercises two. Use the Randint function in random to randomly generate a preset integer between 1~100 to let the user keyboard enter the number of guesses.

Python Exercises

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two. Use the Randint function in random to randomly generate a preset integer between 1~100 to let the user keyboard input the number of guesses, if it is larger than the preset number, the screen display "too big, please re-enter" if it is less than the preset number, the screen display "too small, please re-enter" so loop, Until guess, show "Congratulations, guess!" Guess n times "N is the number of user guesses.

Answer:

ImportRandomdefGuess_number (): True_num=Random.randint (1, -) User_num= int(input("Please enter an integer:")) Count= 1     whileTrue_num!=User_num:ifTrue_num>User_num:Print("Too small, please re-enter!" ")elifTrue_num<User_num:Print("Too big, please re-enter!" ") Count+= 1User_num= int(input("Please enter an integer:"))Print("Congratulations, you guessed it!" You guessed it altogether.%dTimes " %Count) Guess_number ()

Knowledge points the random module in 1.Python 1.1 Random Module Introduction

The random function in the Python standard library can generate randomly floating-point numbers, integers, strings, and even help you randomly select an element in a list sequence, disrupting a set of data, and so on.

1.2 Random Module method Description

• Random.random (): The function generates a random floating-point number, the range is between 0.0~1.0

In [2]: import randomIn [3]: random.random()Out[3]: 0.6935051182120364

• Random.uniform (A, B): A function randomly generates a floating-point number in the range [A, a]

In [26]: random.uniform(0, 100)Out[26]: 26.977426505683276

• Random.randint (A, B): Randomly generates an integer in a range [A, b] (int type)

In [28]: random.randint(1,2)Out[28]: 2In [29]: random.randint(1,2)Out[29]: 1

• Random.choice (): You can select a random element from any sequence, such as the list, to return it, which can be used for strings, lists, tuples, and so on.

When the parameter is a list:

In [31]: random.choice([1,2,3])Out[31]: 3In [32]: random.choice([1,2,3])Out[32]: 1

When the argument is a string:

In [38]: random.choice("i am a bad boy")Out[38]: ‘y‘In [39]: random.choice("i am a bad boy")Out[39]: ‘b‘

When the parameter is Ganso:

In [41]: random.choice((1,3,7,4))Out[41]: 1In [42]: random.choice((1,3,7,4))Out[42]: 7

• Random.shuffle: If you want to shuffle an element in a sequence (excluding Ganso and strings), you can use this function method

In [49]: list = [1,2,3,4]In [50]: random.shuffle(list)In [51]: listOut[51]: [4, 2, 1, 3]

• Random.sample (A, B): A fragment of the specified length B is intercepted randomly and independently from sequence a.

In [58]: b = (9,9,9,1,2)In [59]: random.sample(b, 2)Out[59]: [9, 1]In [60]: random.sample(b, 2)Out[60]: [1, 9]In [61]: random.sample(b, 2)Out[61]: [1, 9]In [62]: random.sample(b, 2)Out[62]: [1, 9]In [63]: random.sample(b, 2)Out[63]: [2, 9]In [64]: list = [1,2,3,5,7,94,2]In [65]: random.sample(list, 3)Out[65]: [1, 5, 7]In [66]: random.sample(list, 3)Out[66]: [2, 2, 5]In [67]: random.sample("i am a bad boy", 3)Out[67]: [‘ ‘, ‘a‘, ‘b‘]In [68]: random.sample("i am a bad boy", 3)Out[68]: [‘a‘, ‘y‘, ‘b‘]

2. The difference between the randint of the random module in Python and the randint of the Numpy.random module

• Random.randint (A, b) # randomly returns an integer value in the range [A, b] of the closed interval

• Numpy.random.randint (A, b) # randomly returns an integer value within the range [A, b] of the Open interval

In [69]: random.randint(0,1)  Out[69]: 0  In [70]: random.randint(0,1)  Out[70]: 1  In [71]: numpy.random.randint(0,1)  Out[71]: 0  In [72]: np.random.randint(0,1)  Out[72]: 0

Python exercises two. Use the Randint function in random to randomly generate a preset integer between 1~100 to let the user keyboard enter the number of guesses.