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020寻找字符串中的密码(不知道我的代码为什么实现不了)

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发表于 2019-9-26 04:05:10 | 显示全部楼层 |阅读模式

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def findcode(str1):
    length=len(str1)
    temp=[]
    code=[]
    for i in range(length):
        if i< (length-7):
           temp=str1[i:i+7]
           if ((temp[0].isupper()) and (temp[1].isupper()) and(temp[2].isupper()) )and ((temp[3].islower()) )and((temp[-1].isupper()) and (temp[-2].isupper()) and(temp[-3].isupper()) ):
              code.append(temp[3])
           else:
              continue
    print("密码是:",code)

str1=input("请输入暗文:")
findcode(str1)

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发表于 2019-9-26 07:57:26 From FishC Mobile | 显示全部楼层
不要总是认为大家都知道你在说什么
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发表于 2019-9-26 10:09:36 | 显示全部楼层
楼主能不能把题目给一下呢?
首先,你的代码上逻辑能实现的是
循环截取7个字符为一个子串,当字符串中除第4个字符为小写且其他全部为大写时满足条件,将满足条件的第4个字符加到密码中
其次,你输入的字符串如果没有满足某7个连续字符为(第4个字符为小写且其他全部为大写)时肯定是空的
小甲鱼最新课程 -> https://ilovefishc.com
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发表于 2019-9-26 10:35:05 | 显示全部楼层
题目是:

请用已学过的知识编写程序,找出小甲鱼藏在下边这个长字符串中的密码,密码的埋藏点符合以下规律:
    a) 每位密码为单个小写字母
    b) 每位密码的左右两边均有且只有三个大写字母

    楼主,看看题目中的红字,实际上需要判断的字符串长度不止 7 个,而是 9 个!

str1 = '''ACFlCTLIQlAIVMTqHFkswqbDDHtpgcWaXSSglUYKE
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qKWGc'''

str = ''
for x in str1:
    str += x . strip()
str = 'a' + str + 'a'
passwd = ''
for k in range(4 , len(str) - 4):
    if str[k - 4] . islower() and str[k - 3 : k] . isupper() and str[k] . islower() and str[k + 1 : k + 4] . isupper() and str[k + 4] . islower():
        passwd += str[k]
print(passwd)

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