各位大侠这段代码是啥意思？？？请指教

Question

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Answer 1

是一段修改密码的代码，修改无异常返回true，反之返回false，它的返回类型是Map，并且用了泛型，从返回值字面意思来看打算返回bool型，但是实际值用了string型，string和bool都是object的子类，如果没猜错作者是用object预留了扩展空间。返回什么类型就用什么类型接受就行了即Map ，在返回后把value 从 Object 型转换成bool或string都行，按这段程序后面的程序变量类型转换就OK了。