Welcom to My Blog
10
25
Java常用类和异常 Java常用类和异常
Java常用类及异常处理1. 获取随机数//1.调用Math类中的random()方法 double d1 = Math.random(); //如果需要[0-10.0)的随机数,将d1*10即可 int i = (int)(d1*10);
2020-10-25
09
06
怎样安装MySQL 怎样安装MySQL
下载链接: https://cdn.mysql.com//Downloads/MySQL-5.7/mysql-5.7.31-1.el7.x86_64.rpm-bundle.tar https://cdn.mysql.com//Down
2020-09-06