java泛型方法调用时失效
public class Test {public void replace(List list, String str){list.add(str);}public static void main(String[] args){Test test = new Test();List<Integer> list = new ArrayList<Integer>();test.replace(list, "123");test.replace(list, "abv");System.out.println(list.get(0));System.out.println(list.get(1));}}