这是我的基本代码,但我不知道在def之后添加什么
def centre(s, width=70):
lines = open ('poem.txt ', 'r'). readlines ()
stripped = []
for line in lines:
stripped.append(line.strip())
您可能想研究str.format()
函数。如果您阅读文档,您会发现它具有居中文本的功能:
>>> "{0:^40}".format(" Ministry of Silly Walks ")
' Ministry of Silly Walks '
>>> "{0:=^40}".format(" Ministry of Silly Walks ")
'======= Ministry of Silly Walks ========'
python提供了一个
str.center(width[,fillchar])
方法。
for line in lines:
print(line.center(width))
或类似
http://docs.python.org/3/library/stdtypes.html#string-methods