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■while命令....................................................................................................................31
■for命令........................................................................................................................31
■foreach命令.................................................................................................................31
■break和continue命令..................................................................................................32
■switch 命令 ................................................................................................................32
■eval命令..............................................................................................................................34
■source命令 ..........................................................................................................................35
过程
(procedure)...................................................36
■过程定义和返回值.............................................................................................................36
■局部变量和全局变量.........................................................................................................37
■缺省参数和可变个数参数.................................................................................................38
■引用：upvar........................................................................................................................39
字符串操作
.............................................................40
■format命令..........................................................................................................................40
■scan命令 .............................................................................................................................41
■regexp命令..........................................................................................................................42
【TCL正则表达式规则详细说明】 .............................................................................44
■regsub命令..........................................................................................................................55
■string命令 ...........................................................................................................................56
■1、string compare ?-nocase? ?-length int? string1 string2.........................................56
■2、string equal ?-nocase? ?-length int? string1 string2..............................................56
■3、string first string1 string2 ?startindex?..................................................................56
■4、string index string charIndex.................................................................................56
■5、string last string1 string2 ?startindex?...................................................................57
■6、string length string.................................................................................................57
■7、string match ?-nocase? pattern string....................................................................57
■8、string range string first last....................................................................................58
■9、string repeat string count.......................................................................................58
■10、string replace string first last ?newstring?...........................................................58
■11、string tolower string ?first? ?last?........................................................................58
■12、string toupper string ?first? ?last? .......................................................................58
■13、string trim string ?chars?.....................................................................................58
■14、string trimleft string ?chars?................................................................................59
■15、string trimright string ?chars? .............................................................................59
文件访问
................................................................60
■文件名.................................................................................................................................60
■基本文件输入输出命令.....................................................................................................61
■随机文件访问.....................................................................................................................63
■当前工作目录.....................................................................................................................64
■文件操作和获取文件信息.................................................................................................65
错误和异常
.............................................................69
