文章标题

1.由于不同进制的运算，所以会变成这样
2.

SELECT * FROM student_score_1 WHERE name LIKE '张%' GROUP BY name HAVING AVG(score) >75;

3.

class Test {    public static void main(String[] args) {        int x = 1;        for (int i = 1; i <= 9; i++) {            x = (x + 1)*2;        }        System.out.println("第一天共摘了" + x + "个桃子。");    }}