Python:每日一题 200
本帖最后由 冬雪雪冬 于 2018-8-23 19:25 编辑我们的玩法做了一下改变:
1. 楼主不再提供答案。
2. 请大家先独立思考,再参考其他鱼油的解答,这样才有助于自己编程水平的提高。开始阶段是看不到其他人的回帖的,等答题完成,开始评分时再取消限制。
3. 鼓励大家积极答题,奖励的期限为出题后24小时内。
4. 根据答案的质量给予1~3鱼币的奖励。
题目:
写一个函数对一个字符串处理,这个字符串只包含大小写英文字母、数字和其他标点符号,将大写英文字母变成小写,小写的变成大写,将数字变成9减去这个数字的值,例如1变成9,2变成8,其他字符不变。最后将转换的字符串return返回。
题目没有考虑周全,数字应该是9减去这个数字的值,谢谢大家指正。
本帖最后由 拉了盏灯 于 2018-8-20 08:49 编辑
def fun200(string):
s = ''
for i in string:
if i.islower():
s += i.upper()
elif i.isupper():
s += i.lower()
elif i.isdigit():
s += str(9-int(i))
else:
s += i
print(s)
这是一个容易读的方法,但是太长了,于是,,,
def fun200(string):
string = string.swapcase()
string = string.translate(string.maketrans('0123456789','9876543210'))
print(string)
{:10_256:}
def fun200(string):
print(string.swapcase().translate(string.maketrans('0123456789','9876543210'))) 本帖最后由 JessiFly 于 2018-8-20 12:34 编辑
def fun200(string):
strlist = []
for each in string:
if each.isupper():
strlist.append(each.lower())
elif each.islower():
strlist.append(each.upper())
elif each.isdigit():
strlist.append(str(9-int(each)))
else:
strlist.append(each)
result = ''.join(strlist)
return result
if __name__ == '__main__':
print(fun200('Ab12_+.xyz'))
print(fun200('1230<>?AaBb'))
aB87_+.XYZ
8769<>?aAbB 本帖最后由 塔利班 于 2018-8-20 09:21 编辑
def fun200(x):
t=''
for e in x:
if e.isdigit():
e=str(9-int(e))
if e.isalpha():
if e.isupper():
e=e.lower()
else:
e=e.upper()
t+=e
return t
import re
def fun200(x):
def fun_200(f):
e=f.group()
if e.isdigit():
return str(9-int(e))
if e.isalpha():
if e.isupper():
e=e.lower()
else:
e=e.upper()
return e
return re.sub(r'\w',fun_200,x) 塔利班 发表于 2018-8-19 19:43
话说0该变成啥。。{:10_245:} 本帖最后由 凌九霄 于 2018-8-19 20:55 编辑
按楼主的意思0会变成10,怪怪的,所以我还是让它不变算了。
def func200(string):
return ''.join([ '0' if x == '0' else str(10 - int(x)) if x.isnumeric() else x.swapcase() for x in string ]) 本帖最后由 Legend丶Hu 于 2018-8-19 22:05 编辑
string = "jh12k33./,sf!@"
def ans():
temp = ""
for each in string:
if each.islower():
each = each.upper()
elif each.isupper():
each = each.lower()
elif each.isdigit():
each = 10 - int(each)
temp += str(each)
return temp
print(ans()) s=str(input("input a string:"))
for i in s:
if i.isalpha():
result=i.swapcase()
elif i.isdigit():
result=str(9-int(i))
else:
result=i
print(result,end='') >>> def fun( s ):
r = ""
c0 = ord('0')
c9 = ord('9')
ca = ord('a')
cz = ord('z')
cA = ord('A')
cZ = ord('Z')
for c in s:
tc = ord(c)
if c0 <= tc <= c9:
tc = c9 - tc + c0
elif ca <= tc <= cz:
tc = tc - ca + cA
elif cA <= tc <= cZ:
tc = tc - cA + ca
r += chr(tc)
return r
>>> fun( 'ABCqwer1234')
'abcQWER8765'
>>> def changeStr(str0):
str0 = str0.swapcase()
str1 = ""
for i in str0:
try:
i = str(eval("9-" + i))
except:
pass
finally:
str1 += i
return str1 def change(string):
if string.isdigit():
return str(9-int(string))
elif string.isupper():
return string.lower()
elif string.islower():
return string.upper()
else:
return string
def func200(string):
return ''.join(map(change, string))
if __name__ == '__main__':
res = func200("123ASDqwe,()8")
print(res) 本帖最后由 graceasyi 于 2018-8-20 10:43 编辑
方法一:
def fun200(pstr):
result = ''
for s in pstr:
if s.isdigit():
result += str(9 - int(s))
elif s.islower():
result += s.upper()
elif s.isupper():
result += s.lower()
else:
result += s
return result
print(fun200("0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz~!@#$%^&*()_+{}|:<>?/.,;\][=-`"))
print(fun200("1@2Abc*diieEXP$D453skj'KE98^Bee9"))
结果:
9876543210abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ~!@#$%^&*()_+{}|:<>?/.,;\][=-`
8@7aBC*DIIEexp$d546SKJ'ke01^bEE0
方法二:
# 方法二
def fun200_2(pstr):
intab = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz"
outtab = "9876543210abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ"
trantab = str.maketrans(intab, outtab)
return pstr.translate(trantab)
print(fun200_2("0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz~!@#$%^&*()_+{}|:<>?/.,;\][=-`"))
print(fun200_2("1@2Abc*diieEXP$D453skj'KE98^Bee9"))
结果:
9876543210abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ~!@#$%^&*()_+{}|:<>?/.,;\][=-`
8@7aBC*DIIEexp$d546SKJ'ke01^bEE0 def fun_200(m):
m=m.swapcase()
m1=list(m)[:]
for i in range(len(m1)):
if m1.isnumeric()==True:
m1=str(9-int(m1))
print(''.join(m1)) string = '阿的江dfyfJKKG 123675430995jhjASDJH交换费'
def fun200(string):
return ''.join(else x.capitalize() if x.islower() else x.lower() for x in string])
a = 'asdJKL12738924&*()^%$#'
def change(str1):
a = []
c = ''
for i in str1:
if i.isnumeric():
i = str(9-int(i))
a.append(i)
else:
a.append(i.swapcase())
for i in a:
c = c + i
return c
b = change(a)
print(b) def fun200(str1):
str2=''
for i in str1:
if i.islower():
str2+=i.upper()
elif i.isupper():
str2+=i.lower()
elif i.isdigit():
str2+=str(9-int(i))
else:
str2+=i
return str2 str_test = input('请输入一个带有大小写字母和数字的字符串')
str_test = str_test.swapcase()
new_list = []
for st in str_test:
if st.isdigit():
new_list.append(str(9 - int(st)))
else :
new_list.append(st)
res_str = ''.join(new_list)
print(res_str) def a200(n):
n=list(n)
for i in range(len(n)):
if n.isalpha():
if n.isupper():
n=n.lower()
elif n.islower():
n=n.upper()
elif n.isdigit():
n=str(9-int(n))
return ''.join(n)
n='I love FishC123!'
print(a200(n))
本帖最后由 mongoole 于 2018-8-20 16:29 编辑
#coding:utf-8
#写一个函数对一个字符串处理,这个字符串只包含大小写英文字母、数字和其他标点符号
#将大写英文字母变成小写,小写的变成大写,将数字变成9减去这个数字的值,例如1变成9,2变成8,其他字符不变。最后将转换的字符串return返回。
#题目没有考虑周全,数字应该是9减去这个数字的值,谢谢大家指正。
def result(str1):
str2 = []
for i in str1:
if i.isalpha():
if i.islower():
str2.append(i.upper())
else:
str2.append(i.lower())
elif i.isdigit():
num = 9 - int(i)
str2.append(num)
else:
str2.append(i)
for j in str2:
print('%s'%j,end='')
# return str2
# str1 = input('Please input your str:')
str1 = '1a!WE23@#'
result(str1)
#print(result(str1))
def test200(string):
temp = []
for i in string:
if i.islower():
temp.append(i.upper())
elif i.isupper():
temp.append(i.lower())
elif not i.isalnum():
temp.append(i)
else:
temp.append(str(9-int(i)))
return ''.join(temp)
页:
[1]
2