# The get() method on dicts # and its "default" argument name_for_userid = { 382: "Alice", 590: "Bob", 951: "Dilbert", } def greeting(userid): return "Hi %s!" % name_for_userid.get(userid, "there") >>> greeting(382) "Hi Alice!" >>> greeting(333333) "Hi there!"
[Python] The get() method on Python dicts and its "default" arg
原文：http://www.cnblogs.com/Answer1215/p/7617569.html