list是一个ArrayList的对象,哪个选项的代码填写到//tododelete处,可以在Iterator遍历的过程中正确并安全的删除一个list中保存的象()。Iterator it = list.iterator();in tindex = 0;while(it.hasNext()){ Object obj = it.next();if(needDelete(obj)){//needDelete返回boolean,决定是否要删除 //tododelete...