记录linux，debain 系统上常用功能插件，方便以后使用。 1.Mplayer 视频音乐播放 Player provides a clean, Pythonic interface to MPlayer. AsyncPlayer is a Player subclass with asyncore integration (POSIX only). GPlayer is a Player subclass with GTK/GObject integration. QtPlayer is a Player subclass with

HDFS是hadoop实现的一个分布式文件系统。(Hadoop Distributed File System)来源于Google的GFS论文。它的设计目标有：非常巨大的分

1byte = 8 bit； 1. 强制转化截取和 精确转化 int强转成byte，而不是本文所说的int转byte[]。通过前一个问题我们知道int占32位，而b

Java中传参都是值传递，如果是基本类型，就是对值的拷贝，如果是对象，就是对引用地址的拷贝。C# 中传递的参数是基元类型（int，float等

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