写出for语句的句法结构，写一个关于for的练习  

@Test
    public void for1(){
        //普通for循环
        //由初始化语句、判断语句、控制语句
        for (int i=0;i<10;i++){
            System.out.println(i);
        }
       //增强for循环
        int[] a1={1,2,3,4,5,6,7,8,9,10};
        for ( int a:a1) {
            System.out.println(a);
        }
    }