for(inti=0, size = list.size(); i < size; i++) { System.out.println(list.get(i)); } 3,增强for循环 for(String s : list) { System.out.println(s); } 4,java8 的forEach循环 list.forEach(System.out::println); 5,迭代器循环 Iterator<String> iterator = list.iterator();while(it...