In [1]:
s = '北京语言大学'
def reverse(s) :
x = len(s)
sub_s = ''
for i in range(x) :
sub_s += s[i]
for i in range(x-1 , -1 , -1) :
print(sub_s[i],end = '')
reverse(s)
In [21]:
rows = int(input('输入行数,以回车结束。 '))
i = 1
j = 1
k = 1
print("等腰直角三角形")
for i in range(0, rows):
for k in range(0, rows+1 - j):
print (" * "*(rows+1-j))
k += 1
j+=1
i += 1
print ("\n")
In [25]:
def wordends(word) :
if word.endswith('x') or word.endswith('ch') or word.endswith('s') or word.endswith('z') or word.endswith('sh'):
print(word,'es',sep='')
elif word.endswith('y') :
print(word[:-1]+'ies')
elif word.endswith('f') :
print(word[:-1]+'ves')
else:
print(word,'s',sep='')
word = input('请输入一个单词:')
wordends(word)
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