摘要: threading的使用:-直接利用threading.Thread生成Thread实例 1.t = threading.Thread(target = xxx, args = (xxx,)) 2.t.start(): 启动多线程 3.t.join():等待多线程执行完成 守护线程: -如果在程序中 阅读全文
posted @ 2018-12-24 23:10 凯撒鸡肉卷 阅读(186) 评论(0) 推荐(0)
摘要: 原文地址:https://www.statmethods.net/management/subset.html R has powerful indexing features for accessing object elements. These features can be used to 阅读全文
posted @ 2018-12-24 00:22 凯撒鸡肉卷 阅读(310) 评论(0) 推荐(0)