有没有可能把一个函数放在一个数据结构中,而不用先用def
给它命名
# This is the behaviour I want. Prints "hi".
def myprint(msg):
print msg
f_list = [ myprint ]
f_list[0]('hi')
# The word "myprint" is never used again. Why litter the namespace with it?
lambda函数的主体是严重受限的,所以我不能使用它们。
编辑:作为参考,这更像是我遇到问题的真实代码。
def handle_message( msg ):
print msg
def handle_warning( msg ):
global num_warnings, num_fatals
num_warnings += 1
if ( is_fatal( msg ) ):
num_fatals += 1
handlers = (
( re.compile( '^<\w+> (.*)' ), handle_message ),
( re.compile( '^\*{3} (.*)' ), handle_warning ),
)
# There are really 10 or so handlers, of similar length.
# The regexps are uncomfortably separated from the handler bodies,
# and the code is unnecessarily long.
for line in open( "log" ):
for ( regex, handler ) in handlers:
m = regex.search( line )
if ( m ): handler( m.group(1) )
https://stackoverflow.com/questions/6629876
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