(7)、string replace string first last ?newstring? 字符替换与删除,如果first比last大,则不进行替换与删除,使用newstring字符替换first到last位置的字符,如果不存在newstring则将first到last位置的字符删除。 example: (8)、string map ?-nocase? mapping string string map ?-nocase?mapping string将string中出现...
string map ?-nocase? mapping string Replaces substrings in string based on the key-value pairs in mapping. mapping is a list of key value key value ... as in the form returned by array get. Each instance of a key in the string will be replaced with its corresponding value. If -no...
set filename "example_file.txt" set extension [file extension $filename] set basename [file rootname $filename] set new_filename [string replace $basename end-3 end ""] set new_filename_with_extension [string cat $new_filename $extension] file rename $filename $new_filename_with_extens...
写道 string map ?-nocase? mapping string Replaces substrings in string based on the key-value pairs in mapping. mapping is a list of key value key value ... as in the form returned by array get. Each instance of a key in the string will be replaced with its corresponding value. If...
String Map Multiple Key/Value Example 注意看第四组映射,返回的字符串是01321221,而不是00320220。为什么呢?这是因为字符串只进行一次迭代,所以先前替换的Key不会影响到之后的Key匹配。 string rangestring first last 返回字符串里某一范围内的连续字符,以索引里的第一个字符起始,以索引里的最后一个字符结束。索引...
结果=>1 he she 2 ;#new 的内容并没有改变,这和 string replace 相同。 set y [lreplace $new 1 2] 结果=>1 2 ;#将第 1、2 个元素删除 lsort命令:实现对列表的排序。 注意:排序操作不影响原表,而是返回排序之后的新表。 set list "a Z z n100 n200 M p Hl hL m 1 20" ...
This example temporarily replaces the built-in puts command with a modified version, then restores the original. This pattern is useful for debugging or adding functionality to built-in commands. Best PracticesDocumentation: Always document when renaming commands. Restoration: Plan how to restore ...
10 :: Set ip address as 10.30.20.1 write a script to replace the 30 with 40? here you can do this in multiple ways1.regsub 30 $data 40 aputs $athis will give you the replaced string2.string replace $data 3 4 40this also will give you the replaced valueRead More ...
{string} 不带替换的引用 [string] 命令替换 \char 反斜杠替代 \ 行继续(在行尾) Tcl 全局变量和反斜杠替代 #!/usr/bin/tclsh # # Demonstrate global variables # and backslash substitution if {$argc >= 1} { set N 1 foreach Arg $argv { ...
set str "Tcl is a dynamic language" set concat_time [time { for {set i 0} {$i < 1000} {incr i} { append str " with great features" } } 10] set replace_time [time { for {set i 0} {$i < 1000} {incr i} { string map {"dynamic" "powerful"} $str } } 10] puts "...