weixin_39567169的博客(整理中)在 python 中,类型属于对象,变量是没有类型的:a=[1,2,3]a="Runoob"以上代码中,[1,2,3]是 List 类型,"Runoob"是 String 类型,而变量 a 是没有类型,她仅仅是一个对象的引用(一个指针),可以是 List ...
柯布西耶的博客Imagine that you need to write some Javascript that simply changes a set of checkboxes when a drop down list is changed.Depending on which item is selected in the list, some of the checkboxes will bec...