1.python 把 a.test("hello")改为test(a,"hello")
2.(列表名称)more_stuff.pop() // 删除列表中最后一个元素
more_stuff.append() // 添加到列表中作为最后一个元素
more_stuff[3,5] 切片不包括5 [0,1,2,3,4,5] 与range情况相同
3.' ' . join (stuff)------->join(' ', stuff)
4.字典用法:http://www.runoob.com/python/python-dictionary.html