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Topic source
def trim(s):
start,end = 0,-1
while s[start] == ' ' or s[end] == ' ':
if s[start] == ' ':
start += 1
if s[end] == ' ':
end -= 1
s = s[start:end+1]
return s
话说 py 没有 ++ | -- 操作吗 ?
- 1
def trim(s):
start,end = 0,-1
while s[start] == ' ' or s[end] == ' ':
if s[start] == ' ':
start += 1
if s[end] == ' ':
end -= 1
s = s[start:end+1]
return s
话说 py 没有 ++ | -- 操作吗 ?
wxg122_858
def trim(s):
if len(s) == 0:
return s
while s[0] == ' ' or s[-1] == ' ':
if s[0] == ' ':
s = s[1:]
if s[-1] == ' ' :
s = s[:-1]
return s