public class Test1 {
    public static void main(String[] args) {
        knockSeven();
    }
    //在控制台打印出1-100中带7的数字或者7的倍数
    public static void knockSeven(){
        for (int i=1;i<=100;i++){
            int ge=i%10;
            int shi=i/10%10;
            if (ge==7||shi==7||i%7==0){
                System.out.println(i);
            }
        }
    }
}