at first, you need to use input function

then, do not forget to use int or float,or else,you can not see the result

Besides,you can also write it as roomnumber= int(input(“what is the roomnumber of ken’s class”))

1.input

there is the fixed form of inputing file,you just need to change the routine,and then you can inout a txt file as you want

2.output

this is a funcion.the last line is used to run the funcion.the second line is to create a new txt file and the third line is to write the content in the txt file.

at first, you need to create a dictionary.

The brackets should be {}

The name and date of the coding is the key of the dictionary

luzhizhou and 1125 is the content related with the key

If you want to print it,please follow the form,with in the [],youneed to writhe the name of the key.

print(str1[0]) means that the first one of the string

print(str2[1:5]) mens that the second to the fifth one of the string

print(str1+str2) means that add these two strings together

!!! do not forget the quotation marks

tuple

1.empty tuple：write nothing inside

tup1 = ()

2.one tuple:remember to print “,”after

tup1 = (‘lu’,)

3.example: tup1[0] means that the first one ofthe tuple, tup2[0:3] means that the first 4 of the tuple

tup1 = (‘lu’, ‘zhi’, ‘zhou’,2019)
tup2 = (1, 2, 3, 4, 5, 6, 7 )
print(tup1[0])
print(tup2[0:3])

list:alomst the same meaning of tuple

list1 = [‘lu’, ‘zhi’, ‘zhou’,2019]
list2 = [1, 2, 3, 4, 5, 6, 7 ]
print(list1[0])
print(list2[0:3])

!!! be care of the brackets

This is the login part of my spanish dictionary app

For Recursion,the red rectangle is the most important step .It must have itself.

The result is

This is a spanish dictionary that I use for testing my spanish words.

When I start it , it will show ten spanish word gradually.If I know the first word, I wil press 0,then it will show the next word,but if I do not know the first word, I will press 1, then it will show the chinese meaning for me.It is useful.