System.out.println(3/5) = 0; System.out.println(2/5) = 0; System.out.println(4/5) = 0; System.out.println(6/5) = 1; System.out.println(7/5) = 1; System.out.println(8/5) = 1; System.out.println(11/5) = 2; System.out.println(12/5) = 2; System.out.println(13/5) = 2;
结果等于得到的整数(商的整数)
System.out.println(17%5) = 2; System.out.println(16%5) = 1; System.out.println(13%5) = 3; System.out.println(8%5) = 3; System.out.println(7%5) = 2;
结果等于余数(剩余多少)
System.out.println(2%5) = 2; System.out.println(7%8) = 7; System.out.println(6%8) = 6;
取余(取模)有个规律就是:左边小于右边,结果为左边,左边大于右边,看余数