List
for (int i = 0; i < list.size(); i++) {
System.out.println(list.get(i))。
ist
for (int i = 0; i < list.size(); i++) {
System.out.println(list.get(i));
for循环
List
for (int i = 0; i < list.size(); i++) {
System.out.println(list.get(i));
}
List features = Arrays.asList("a", "b", "c","d");
features.forEach(n -> System.out.println(n));//jdk8
for(int i = 0;i
}
for循环就可以