文件操作

Posted 2020-11-09 赵敏婷

 

fr=open(\'马骝.txt\',mode=\'r\',encoding=\'utf-8\')
plaincode=fr.read()
fr.close()

fw=open(\'大马骝.txt\',mode=\'a\',encoding=\'utf-8\')
for c in plaincode:
    fw.write(chr(ord(c)+3))
fw.close()



import turtle

turtle.speed(20)
colors=[\'#B22222\',\'#9A32CD\',\'#32CD32\',\'#00FFFF\',\'#6B8E23\',\'#4169E1\']

for i in range(200):
    turtle.pencolor(colors[i% 6])
    turtle.forward(i)
    turtle.left(58)
turtle.done()


classmates = [\'Michael\', \'bob\',\'tracy\']
#print(len(classmates))
#print(classmates[-1])
(classmates).append(\'rose\')
classmates.insert(1,\'jack\')
classmates.pop()
classmates.pop(0)
classmates[0]=\'tom\'
print(classmates)