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详细说明： 无意中搜到tcl脚本图书一本，分享与大家，目录如下， 第 1 章. TCL基本知识............................................................................................. 1 1.1 什么是TCL.......................................................................................................... 1 1.2 TCL自学工具........................................................................................................ 1 1.3 TCL软件包............................................................................................................. 2 1.4 TCL命令格式........................... .............................................................................. 2 1.5 TCL脚本文件和SOURCE 命令............................................................................. 3 1.6 可执行脚本文件(EXECUTABLE FILE)..................................................................... 3 1.7 获得帮助.............................................................................................................. 4 1.7.1 Windows系统..................................................................................................... 4 1.7.2 Unix系统............................................................................................................. 4 第 2 章. 输出、赋值与替换...................................................................................... 5 2.1 PUTS........................................................................................................................ 5 2.2 SET & UNSET............................................................................................................ 5 2.3 替换....................................................................................................................... 6 2.3.1 $...........................................................................................................................6 2.3.2 []...........................................................................................................................6 2.3.3 " " 和{}.................................................................................................................6 2.3.4 \...........................................................................................................................7 第 3 章. 数学表达式与EXPR命令........................................................................... 8 3.1 数学和逻辑运算符................................................................................................ 8 3.2 数学函数................................................................................................................ 8 3.3 数学运算举例.........................................................................................................9 3.4 INCR命令.................................................................................................................9 第 4 章. 字符串.........................................................................................................10 4.1 基本命令集..........................................................................................................10 4.2 APPEND命令.........................................................................................................10 4.3 FORMAT命令........................................................................................................10 4.3.1 format命令说明................................................................................................10 4.3.2 format举例........................................................................................................11 4.4 SCAN命令.............................................................................................................12 4.5 BINARY命令..........................................................................................................13 4.6 SUBST命令...........................................................................................................14 4.7 STRING 命令.........................................................................................................15 4.7.1 string 命令列表................................................................................................ 15 4.7.2 字符串比较....................................................................................................... 16 4.7.3 string match字符串匹配................................................................................... 16 4.7.4 字符串替换.......................................................................................................18 4.7.5 字符类别(class)测试........................................................................................18 4.7.6 字符串映射.......................................................................................................19 Tcl 编程初步 第 5 章. TCL列表操作.........................................................................................20 5.1 列表命令集....................................................................................................20 5.2 LIST命令.......................................................................................................... 20 5.3 CONCAT命令................................................................................................... 21 5.4 LAPPEND命令...................................................................................................... 21 5.5 LLENGTH 命令.......................................................................................................22 5.6 LINDEX命令............................................................................................................................22 5.7 LRANGE命令..........................................................................................................................22 5.8 LINSERT 和LREPLACE命令.....................................................................................22 5.9 LSEARCH命令.........................................................................................................................23 5.10 LSORT命令.............................................................................................................................24 5.11 JOIN与SPLIT命令...................................................................................................................24 5.12 FOREACH控制结构................................................................................................................27 第 6 章. 数组............................................................................................................................28 6.1 数组的定义与格式................................................................................................................28 6.2 数组变量...............................................................................................................................29 6.3 多维数组...............................................................................................................................29 6.4 数组操作命令.......................................................................................................................30 6.4.1 array get命令.........................................................................................................30 6.4.2 array names命令....................................................................................................30 6.4.3 遍历数组...................................................................................................................31 6.4.4 用数组定义结构........................................................................................................31 第 7 章. 控制结构命令.............................................................................................................32 7.1 IF/ELSE命令............................................................................................................................32 7.2 FOR命令...............................................................................................................................33 7.3 WHILE命令.............................................................................................................................33 7.4 BREAK 与 CONTINUE命令.........................................................................................34 7.5 SWITCH命令...........................................................................................................................34 7.6 CATCH 命令...........................................................................................................................35 7.7 ERROR命令............................................................................................................................36 7.8 RETURN 命令...........................................................................................................................37 7.9 EXIT命令...............................................................................................................................37 第 8 章. 过程与作用域.............................................................................................................38 8.1 PROC—过程定义命令...........................................................................................................38 8.2 作用域..................................................................................................................................40 8.2.1 过程的作用域............................................................................................................40 8.2.2 变量的作用域............................................................................................................40 8.3 UPVAR命令............................................................................................................................42 8.4 RENAME命令.........................................................................................................................44 8.5 特殊变量...............................................................................................................................45 8.5.1 命令行参数................................................................................................................45 8.5.2 env--环境变量数组...................................................................................................45 8.6 EVAL命令..............................................................................................................................46 8.7 UPLEVEL命令..........................................................................................................................48 第 9 章. 正则表达式（REGULAR EXPRESSIONS）...................................................................49 9.1 REGEXP命令..........................................................................................................................49 9.2 REGSUB命令...........................................................................................................................51 9.3 正则表达式的语法................................................................................................................52 ii Tcl 编程初步 9.3.1 分支(branch)和原子(atom)....................................................................................52 9.3.2 基本语法...................................................................................................................52 9.3.2.1 匹配字符......................................................................................................................52 9.3.2.2 限定匹配...........................................................................................................................53 9.3.2.3 方括号表达式与字符集....................................................................................................53 9.3.2.4 匹配分支.................................................................................................................54 9.3.2.5 量词（Qulifier）.......................................................................................................54 9.3.2.6 子模式与匹配报告捕获....................................................................................................55 9.3.2.7 反斜杠引用..................................................................................................................56 9.3.2.8 匹配优先级...................................................................................................................56 9.3.3 高级正则表达式（AREs）.........................................................................................57 9.3.3.1 反斜杠换码(escape)序列.......................................................................................57 9.3.3.2 归整元素(collating element)...............................................................................57 9.3.3.3 等价类(equivalence class)....................................................................................58 9.3.3.4 字符类(character class)..........................................................................................58 9.3.3.5 非贪婪量词.................................................................................................................59 9.3.3.6 约束量词.................................................................................................................59 9.3.3.7 回退引用....................................................................................................................59 9.3.3.8 前瞻(lookahead)...................................................................................................60 9.3.3.9 换行符敏感的匹配......................................................................................................60 9.3.3.10 嵌入式选项................................................................................................................60 9.3.3.11 扩展语法....................................................................................................................60 9.3.4 语法小结...................................................................................................................60 9.3.5 其它支持正则表达式的命令......................................................................................60 第 10 章. 名字空间.................................................................................................................62 10.1 创建名字空间...................................................................................................................62 10.2 用::限定符来使用变量和过程...........................................................................................62 10.3 名字空间的变量...............................................................................................................63 10.4 过程的进口与出口............................................................................................................64 10.5 内省(INTROSPECTION).........................................................................................................65 10.6 名字空间命令集...............................................................................................................65 第 11 章. 跟踪与调试.............................................................................................................67 11.1 CLOCK命令...........................................................................................................................67 11.1.1 clock clicks命令......................................................................................................67 11.1.2 clock seconds命令................................................................................................67 11.1.3 clock format命令...................................................................................................68 11.1.4 clock scan命令.......................................................................................................70 11.2 INFO 命令...............................................................................................................71 11.2.1 info level..................................................................................................................72 11.2.2 info exists.................................................................................................................72 11.3 TRACE命令............................................................................................................................73 11.3.1 trace variable.........................................................................................................73 11.3.2 trace vdelete..........................................................................................................75 11.3.3 trace vinfo...............................................................................................................75 第 12 章. 脚本库与软件包......................................................................................................76 12.1 声明和使用软件包............................................................................................................76 12.1.1 软件包定位................................................................................................................76 12.1.2 声明软件包命令........................................................................................................76 12.1.3 加载软件包命令........................................................................................................76 12.1.4 自动加载与软件包索引.............................................................................................77 12.1.5 用链接库提供软件包.................................................................................................79 iii Tcl 编程初步 12.2 PACKAGE命令集...................................................................................................................80 12.3 小结.................................................................................................................................80 第 13 章. 文件操作与程序调用...............................................................................................81 13.1 文件操作...........................................................................................................................81 13.1.1 文件I/O....................................................................................................................81 13.1.2 文件系统信息命令.....................................................................................................82 13.1.2.1 glob命令...................................................................................................................83 13.1.2.2 file命令集.....................................................................................................................83 13.2 程序调用...........................................................................................................................85 13.2.1 用open命令打开一个进程管道..............................................................................85 13.2.2 用exec命令调用程序..............................................................................................87 13.2.3 pid命令....................................................................................................................88 第 14 章. 套接字与事件驱动编程简介....................................................................................89 14.1 套接字编程.......................................................................................................................89 14.1.1 socket命令..............................................................................................................89 14.1.1.1 Client端socket命令................................................................................................89 14.1.1.2 Server端socket命令选项......................................................................................90 14.1.2 用fconfigure配置套接字........................................................................................90 14.1.3 C/S编程举例............................................................................................................90 14.2 事件驱动编程...................................................................................................................93 14.2.1 after命令.................................................................................................................93 14.2.2 fileevent命令..........................................................................................................96 14.2.3 vwait命令................................................................................................................96 14.2.4 fconfigure命令.......................................................................................................97 14.2.4.1 fconfigure语法..........................................................................................................97 14.2.4.2 非阻塞I/O.........................................................................................................98 14.2.4.3 缓冲........................................................................................................................98 ...展开收缩
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