摘要：在CentOS8.0中默认不再支持ntp软件包，时间同步将由chrony来实现. 添加wlnmp源rpm -ivh http://mirrors.wlnmp.com/centos/wlnmp-release-centos.noarch.rpm 安装ntp服务 时间同步yum install wntp 阅读全文

摘要：import turtledef main(): count = 1 while count <= 5: turtle.forward(100) turtle.right(144) count = count + 1 turtle.exitonclick()if __name__== '_main_ 阅读全文

摘要：print( sum( [ i for i in range(1,10) ] ) ) 阅读全文

摘要：import turtleturtle.color("blue")turtle.penup()turtle.goto(-110, -25)turtle.pendown()turtle.circle(45)turtle.color("black")turtle.penup()turtle.goto(0 阅读全文