文件操作

 

fr = open('jinwanjiudian.txt',mode='r',encoding='utf-8')
plaincode = fr.read()
print('mingwen:' + plaincode)

print('miwen:',end='')
for c in plaincode:
    print(chr(ord(c)+3),end='')

 

fr = open('jinwanjiudian.txt',mode='r',encoding='utf-8')
plaincode = fr.read()
print('miwen:' + plaincode)

print('mingwen:',end='')
for c in plaincode:
    print(chr(ord(c)-3),end='')

 

 

import turtle
turtle.speed(10)
colors = ['#555555','#556B2F','#8968CD','#8B6914','#CD00CD']

for i in range(300):
    turtle.pencolor(colors[i%5])
    turtle.forward(i)
    turtle.left(59)
turtle.done()

classmates = ['Kendrick', 'Travis', 'Quavo']
#print(Len(claassmates))
#print(classmates[-1])

classmates.append('21 Savage')
classmates.insert(1,'Metro Boomin')
classmates.pop(3)
print(classmates)