object(mysqli_result)#13 (5) {
["current_field"]=>
int(0)
["field_count"]=>
int(25)
["lengths"]=>
NULL
["num_rows"]=>
int(1)
["type"]=>
int(0)
}
如何生成一定範圍內的隨機數？How can I generate a random number - 程序員論壇 - Powered by Discuz!
程序員論壇
標題: 如何生成一定範圍內的隨機數？How can I generate a random number [打印本頁] 作者: GreenCup 時間: 2021-4-4 07:00 標題: 如何生成一定範圍內的隨機數？How can I generate a random number 如何生成一定範圍內的隨機數？
How can I generate a random number in a certain range?
final int random = new Random().nextInt(61) + 20; // [0, 60] + 20 => [20, 80]
複製代碼
final int min = 20;
final int max = 80;
final int random = new Random().nextInt((max - min) + 1) + min;