Tcl 将变量的值作为变量的名称 [英] Tcl placing a value of a variable as the name a the variable

问题描述

我在使用 Tcl 时遇到了一些问题.我有一个变量，里面有一个字符串.现在我希望这个字符串是下一个变量的名称.

I'm having some issues with Tcl. I have a variable that has a string in it. Butt now I want this string to be the name of a next variable.

我在网上发现了一些类似的问题，但这些都是关于将一​​个变量的值放到另一个变量中的.不使用它作为变量的名称.

I have found some similar questions on the web, but these are all about placing the value from a variable into another variable. not using it as the name of the variable.

以下是帮助解释的示例代码:

Here is a sample code to help explaining:

    foreach key [array names ::openedFiles] {
    puts $::openedFiles($key)
    set filename [file tail $::openedFiles($key)]
    set parts [split $filename .]
    set name [lindex $parts 0]

    puts $name

    $L1 create cell $name

    set "value of $name" [ layout create $::openedFiles($key) -dt_expand -log LUN.log]

所以基本上它必须执行以下操作.该数组中有一些路径字符串.我只从路径中获取文件名，而没有文件扩展名.

So bassicly it has to do the following. The array has some path string in it. I get only the name of the file out of the path without the file extension.

然后我想创建一个变量cell"，它是$name"的值.所以当文件名是Test"时，$name 的值将是Test"，我想像这样做最后一行

Butt then I want to create a variable "cell" that is the value of "$name". So when the filename is "Test", the value of $name will be "Test" and I want to do the last line like this

     set Test [ layout create $::openedFiles($key) -dt_expand -log LUN.log]

这样 $name 的值将成为新变量的名称.因此，我可以创建一个变量，其中包含数组中所有值的名称.

So that the value of $name will be the name of the new variable. And so I can creat a variable with the name of all the values in the array.

任何帮助或指示都会很棒！

Any help or pointers would be great!

非常感谢！

推荐答案

正确的解决方法是使用 $name 作为第一个参数来设置

The correct solution is to use $name as first parameter to set

set name "foo"
set $name "bar"
puts $foo ;# -> bar

但是如果您尝试使用 $name 它将产生 foo，而不是 bar(根据评论.我不知道为什么你需要一个你不知道名字的变量，但无论如何:

But if you try to use $name it will yield foo, not bar (Which is what you do in your code according to the comments. I don't know why you need a variable whose name you don't know, but anyway:

puts [set $name] ;# -> bar

会给你正确的东西.同样适用于对象:

will give you the correct thing. The same works with objects:

set topcell [[set $name] topcell]

所以我要问你:那你想用动态命名变量做什么?

So I have to ask you: what do you want to do with the dynamic named variable then?

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