为什么文件名没有被正确呈现 [英] Why filename is not getting rendered properly

问题描述

我需要将程序的输出重定向到一个文件，下面是我用来创建输出日志文件名的代码:

I am in need to redirect output of program to a file and below is the code that I am using to create the output log file name:

set filename "C:\tools\tcl\bin\my.log"
puts "The log file $filename"

但这会打印:

 The log file C: ools    cinmy.log

注意我也可以接收文件名作为脚本的参数:

Note I can also receive the filename as argument to script:

set logfile [lindex $argv 1]

当以 arg 和常量形式接收日志文件时，如何解决这两种情况的问题?

How can I resolve the issue for both case when receive logfile as arg and as constant?

推荐答案

Tcl 会做 反斜杠替换 并且这些替换只会发生在双引号中.如果您需要文字反斜杠，则必须将其转义.当用大括号括起来时，这些替换不会发生.

Tcl will do backslash substitution and these substitution will happen only with double quotes. If you need a literal backslash, you have to escape it. When enclosed with braces, these substitution will not happen.

因此，您可以将变量定义为

So, you can define your variable as

set filename "C:\\tools\\tcl\\bin\\my.log"

或

set filename {C:\tools\tcl\bin\my.log}

关于命令行参数的东西，不要打扰.Tcl 会处理它.它将按原样从您的终端接收.

About the command line argument stuff, don't bother. Tcl will take care of it. It will be received as it is from your terminal.

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