我想将所有ruby文件包含在实现函数toto()
的目录中。
在python中我会这样做:
res = []
for f in glob.glob("*.py"):
i = __import__(f)
if "toto" in dir(i):
res.append(i.toto)
我可以像这样使用这个列表:
for toto in res:
toto()
答案 0 :(得分:2)
在Ruby中,导入与Python非常不同 - 在Python文件和模块中或多或少是相同的东西,在Ruby中它们不是。您必须手动创建模块:
res = []
Dir.glob("*.rb") do |file|
# Construct a class based on what is in the file,
# and create an instance of it
mod = Class.new do
class_eval File.read file
end.new
# Check if it has the toto method
if mod.respond_to? :toto
res << mod
end
end
# And call it
res.each do |mod|
mod.toto
end
或许更多Ruby惯用语:
res = Dir.glob("*.rb").map do |file|
# Convert to an object based on the file
Class.new do
class_eval File.read file
end.new
end.select do |mod|
# Choose the ones that have a toto method
mod.respond_to? :toto
end
# Later, call them:
res.each &:toto