第十九讲——增强For循环

第十九讲——增强For循环

package scanner;

//内循环是内循环结束后外循环，往复循环直到不满足条件
public class Demo01 {
    public static void main(String[]args){
        int[] numbers = {10,20,30,40,50};//定义了一个数组
        //遍历数组的元素
        for (int x:numbers){//把数组赋值给x
            System.out.println(x);
        }
        System.out.println("==========================================");
        for(int i =0; i<3 ; i++){//i；取数组里第几位
            System.out.println(numbers[i]);//输出第几位数组
        }
    }
}

显示

C:\Users\夏天的风\Desktop\DEMO-XXZ\out\production\DEMO-XXZ scanner.Demo01
10
20
30
40
50
==========================================
10
20
30
40
50

Process finished with exit code 0

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新增单词

1	numbers	数组	男本丝~