rm(list=ls())

#导入tm包

library(tm)

library(SnowballC)

#查看tm包的文档

#vignette("tm")

##1.Data Import 导入自带的路透社的20篇xml文档

#找到/texts/crude的目录，作为DirSource的输入，读取20篇xml文档

reut21578 <- system.file("texts", "crude", package = "tm")

reuters <- Corpus(DirSource(reut21578), readerControl = list(reader = readReut21578XML))！

2.自动追踪雪球指令

1、用石锹挖开地表的雪有可能会发现命令方块。

2、拿到命令方块后就可以开始「改造」雪球，在地面上放置命令方块和拉杆。

3、在命令方块中，输入指令execute @e[type=snowball] ~ ~ ~ tp @e[type=snowball,r=10] @e[type=!snowball,type=!player,r=10]，方块类型设置为循环，条件为无条件，红石设为红石控制。

也可以将命令方块中的指令改为execute @e[type=arrow] ~ ~ ~ tp @e[type=arrow,r=10] @e[type=!arrow,type=!player,r=10]，其他保持不变。

4、再拉下拉杆，小伙伴的雪球就能得到控制了。

在小伙伴和村民打雪仗的时候

百度贴不了wiki的地址，大概是垄断吧

A+BAT

A+

A++

A# .NET

A# (Axiom)

A-0

ABAP

ABC

ABC ALGOL

ABLE

ABSET

ABSYS

ACC

Accent

ActionScript

Ace DASL

ACT-III

Ada

APL

AWK

B

BACI

Baja

BASIC

bc

bcompile

BCPL

BeanShell

BETA

Bigwig

Big Snake

Bistro

BLISS

Blitz Basic

Block And List Manipulation (BALM)

Blue - Rejected prototype for Ada

Blue

Boo

Bourne shell - a.k.a sh

Bourne-Again shell - see Bash

Boxx

BPEL - Business Process Execution Language

Brainfuck

BUGSYS

BuildProfessional

BYOND

C

C--

C-script

C++ - ISO/IEC 14882

C# - ISO/IEC 23270

C shell (csh)

Caché ObjectScript - See also Caché Basic

Caml

Cat

Cayenne

C-BOT

Cecil

Cesil

Cg

Ch interpreter (C/C++ interpreter Ch)

Chapel

CHAIN

Charity

Chef

Chey

CHILL

CHIP-8

chomski

Chrome

ChucK

Cilk

CICS

CL

Clarion

Clean

Clipper

CLIST - Programming language for online applications in the MVS TSO environment

CLU

CMS-2

COBOL - ISO/IEC 1989

CobolScript

Cobra

CODE

ColdFusion

COMAL

Common Intermediate Language (CIL)

Common Lisp

Component Pascal

COMIT - List or string processing language

Concurrent Clean

Constraint Handling Rules

CORAL66

Corn

CorVision

COWSEL

CPL

CSP

Csound

Cue

Curl

Curry

Cyclone

D

Dao

DASL - Distributed Application Specification Language

DASL - Datapoint's Advanced Systems Language

DarkBASIC

DarkBASIC Professional

Dataflex

Datalog

dBASE

dc

Deesel (formerly G)

Delphi

Dialect

DinkC

DCL

Dialog Manager

DIBOL

DL/I

Dream Maker

Dylan

Dynace

E

Ease

EASY

Easy PL/I

EASYTRIEVE PLUS

eC (Ecere C)

ECMAScript

eDeveloper

Edinburgh IMP

Einstein

Eiffel

Elan

elastiC

Elf

Emacs Lisp

EGL Programming Language (EGL)

Epigram

Erlang

Escapade - server-side programming

Esterel

Euclid

Euphoria

Euler

EXEC

EXEC2

F

F#

Factor

Fan

Felix

Ferite

F#

FL

FLOW-MATIC

FOCAL

FOCUS

FOIL

FORMAC

Formula language

Forth

Fortran - ISO/IEC 1539

Fortress

FoxPro

FP

Frag Script

Franz Lisp

Frink

Frontier

F-Script

Gambas

G-code

General Algebraic Modeling System

Generic Java

Gibiane

G (LabVIEW)

Gödel

Godiva

GOTRAN (see IBM 1620)

GOTO++

GPSS

GraphTalk

GRASS

Green

Groovy

H - Business processing language from NCR.

HAL/S - Real-time aerospace programming language

HAScript

Haskell - An advanced functional programming language

HaXe - Open Source language which can compile to four different platforms, including PHP and Flash

HyperTalk

IBM Basic assembly language

IBM RPG

ICI

Icon

IDL

IMP

Inform

Information Processing Language (IPL)

Informix-4GL

Io

IPTSCRAE

Interactive System Productivity Facility

J

J#

J++

JADE

JAG

Jal

Janus

Java

JavaScript

Jim++

JCL

Join Java

JOSS

Joule

JOVIAL

Joy

JScript

JSP

J2EE

J2ME

K

KEE

Kiev

Korn Shell

KIF

Kite

Kogut

KRC

KRL

KRYPTON

L

LabVIEW

Lagoona

LANSA

Lasso

Lava

Leda

Lead

Leadwerks Script

Legoscript

Leopard

Lexico

Lfyre

Liberty BASIC

Limbo

Limnor

LINC

Lingo

Lisaac

Lisp - ISO/IEC 13816

Lite-C

Logo

LOLCODE

LPC

LSL

LSE

Lua

Lucid

Lush

Lustre

LYaPAS

LSL

M4

MAD

MADCAP

MAGIC - See eDeveloper

Magik

Magma

MapBasic

Maple

MAPPER (Unisys/Sperry) now part of BIS

M-A-R-E-K (Programming language)

MARK-IV (Sterling/Informatics) now VISION:BUILDER of CA

Mary

Mathematica

MATLAB

MATA

Maxima (see also Macsyma)

MaxScript internal language 3D Studio Max

Maya (MEL)

Multiprocessor C#

Mercury

Mesa

METAL

Michigan Algorithm Decoder see MAD programming language

Microcode

MicroScript

MillScript

MIMIC

Mindscript

Miranda

Miva

ML

Moby

MODCAP

Model 204 User Language

Modula

Modula-2

Modula-3

Mondrian

Mortran

Moto

MOUSE

MSIL - Deprecated name for Common Intermediate Language

MSL

MONO

MUMPS

Napier88

Natural

Nemerle

NESL

Net.Data

Neuralware

NewtonScript

NGL

Nial

NXT-G

Nice

Nickle

Nosica

NQC

Nu

o:XML

Oberon

Objective Modula-2

Object Lisp

ObjectLOGO

Object Pascal

Objective-C

Objective Caml

Obliq

Objectstar

ObjectView

Ocaml

occam

occam-π

Octave

OmniMark

Opal

Open programming language

OPS5

Organiser Programming Language (OPL) - cf. Psion Organiser

Oxygene

Oz

PARI/GP

Parser

Pascal - ISO 7185

Pawn

PBASIC

PCASTL

PEARL

Perl

Perl Data Language

PHP

Pico

Piet

Pike

PIKT

PILOT

Pizza

PL 11

PL/0

PL/8

PL/B

PL/C

PL/I - ISO 6160

PL/M

PL/P

PL/SQL

Plankalkül

PLD

PLEX

PLEXIL

Pliant

PNGlish

PPL

POP-11

Poplog

PORTRAN

PostScript

Ppc++

Processing

Prograph

Progress 4GL

Prolog

Turbo Prolog

Promela

Protheus

PRO-IV

Python

Q

Qi

QtScript

QuakeC

QPL

Quikcomp (for the Moonrobot XI)

R

R++ - Based on C++ and added semanteme description

Rascal

Ratfiv

Ratfor

RBScript

rc

REPL - Really Easy Programming Language

REBOL - Relative Expression Based Object Language

Red - Rejected prototype for Ada

Redcode

REDO

REFAL

Revolution

REXX

Rigal

Rlab

Robot Scripting Language (RSL)

RPG - Report Program Generator

RPL

RScript

Ruby

Russell Programming Language

REALBasic

S

S2

S-PLUS

S-Lang

SAIL

SAKO

SAM76

SAS

Sather

Scala

ScalPL

SCAR

SCATRAN

Scheme

Scilab

Script.NET

Sed

Seed7

Self

SETL

Shadow Programming Interface (Developing)

ShadowScript

Shift Script

SIGNAL

SiMPLE

SIMPOL

SIMSCRIPT

Simula

SISAL

Slate

SLIP

SMALL - SMALL Machine Algol Like Language

Small

Smalltalk

SNOBOL - String Oriented Symbolic Language

SPITBOL

Snowball

SPARK

Spice

SPIN

SP/k

SPL/1 - aka SPL/I

SPS (1620) - see IBM 1620

Squirrel

SR

SSL

Standard ML

StringLang

Subtext

SuperCollider

Suneido

SYMPL

SyncCharts

Synergy/DE

SystemVerilog

T

TACL

TACPOL

TagsMe

TADS

TIE

Transaction Application Language

Tcl

Transact-SQL

teco

TELCOMP

Telon

Tempo

thinBasic

Titanium

TI-Basic

Today

Tom

TOM

Topspeed - see Clarion

TorqueScript

tpu

Trac

Trine

TTCN

Turbo Pascal

Turing

TUTOR\

Tutorial D

TXL

Ubercode

Ultra 32

Unicon

Uniface

Unix shell

Unlambda

UnrealScript

Use

V

Vala

VDM++

VDM-SL

Verilog

VHDL

Visual Assembler

Visual Basic - Visual Beginners All-purpose Symbolic Instruction Code

Visual Basic .NET

Visual DataFlex

Visual DialogScript

Visual FoxPro

Visual J++

Visual Objects

VBScript

VX-REXX

Vvvv

Water

WATFOR - see WATFIV

WATFIV

WAXHTML

WebQL

Whitespace

Winbatch

WinDev

Windows PowerShell

X++

X10

Xbase++ 32Bit Windows language

XBL

xbScript - Also xBaseScript

xHarbour

XL

XOTcl

XPL

XPL0

XQuery

XSLT - See XPath

Y

YACC

YAFL

Yellow - Rejected prototype for Ada

Yorick

Y

Z++

Z notation - A program specification language, like UML.

Zonnon

ZOPL

ZPL