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文件操作

时间:2018-05-30 22:52:31      阅读:287      评论:0      收藏:0      [点我收藏+]

标签:rac   war   com   yellow   info   alt   mat   .com   src   

fr = open(Alice.txt, mode=r, encoding=utf-8)
plaincode=fr.read()
print(明文:+plaincode)

print(密文:,end=‘‘)
for c in plaincode:
    print(chr(ord(c)+3),end=‘‘)

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

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

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

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

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classmates = [Michael,Bob,Tracy]
#print(len(classmates))
#print(classmates[-1])

classmates.append(Rose)
print(classmates)

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classmates = [Michael,Bob,Tracy]
#print(len(classmates))
#print(classmates[-1])

classmates.append(Rose)
classmates.insert(1,Jack)

classmates.pop()
print(classmates)

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classmates = [Michael,Bob,Tracy]
#print(len(classmates))
#print(classmates[-1])

classmates.append(Rose)
classmates.insert(1,Jack)

classmates.pop()
classmates.pop(0)
print(classmates)

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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)

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import turtle
turtle.speed(10)
colors = [red, purple, blue, green, yellow, orange]

for i in range(100):
    turtle.pencolor(colors[i% 6])
    turtle.forward(i)
    turtle.left(59)
turtle.done()

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文件操作

标签:rac   war   com   yellow   info   alt   mat   .com   src   

原文地址:https://www.cnblogs.com/LIDY1260/p/9113726.html

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