您可以在.上分割路径(用正则表达式引用)，然后减少在路径上使用您的数据.例如

You can split the path on . (quote it for the regexp) and then reduce over the path using your data. E.g.

def data = [a: [b: [c: 42]]]
def path = "a.b.c"

println path.split(/\./).inject(data){ m, p -> m?.getAt(p) }
// → 42