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R语言画图，参考： http://blog.sina.com.cn/s/blog_1704ff73a0102wtx4.html https://www.yuque.com/shenweiyan/cookbook/nvi8vg https://www.jianshu.com/p/166551f66b4 阅读全文
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Check out the JRI/rJava project which provides a Java/R interface. After you download the package, see the examples directory. Another option is to us 阅读全文
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1、查看当前的系统时间：# date 2、 查看当前时区$ timedatectl status 3、修改时间# date -s "2019-06-25 20:13:00"4、修改时区# timedatectl set-timezone Asia/Shanghai 阅读全文