Python如何将以下代码所有输出的元素重置为“你好”。public class NoteBook { String a = ""; ArrayList<String> lst = new ArrayList<>(); public void addlist(String a) { lst.add(a); } public int getSize(){ return lst.size(); } public String[] list(){ String[] str = new String[lst.size()]; lst.toArray(str); return str; } public static void main(String[] args) { NoteBook nb = new NoteBook(); nb.addlist("张三"); nb.addlist("李四"); nb.addlist("王二麻子"); System.out.println(nb.getSize()); for (String k:nb.list()){ System.out.println(k); } } }

这段代码是Java代码，而不是Python代码。要将输出的元素重置为“你好”，需要在每个addlist()方法中添加代码，将传入的字符串参数改为“你好”。修改后的代码如下：

public class NoteBook {
    String a = "";
    ArrayList<String> lst = new ArrayList<>();

    public void addlist(String a) {
        lst.add("你好");
    }

    public int getSize(){
        return lst.size();
    }

    public String[] list(){
        String[] str = new String[lst.size()];
        lst.toArray(str);
        return str;
    }

    public static void main(String[] args) {
        NoteBook nb = new NoteBook();
        nb.addlist("张三");
        nb.addlist("李四");
        nb.addlist("王二麻子");
        System.out.println(nb.getSize());
        for (String k:nb.list()){
            System.out.println(k);
        }
    }
}