我会使用 Irony，.NET 语言工具包.您可以使用 Irony 构建一个简单的语法，然后将字符串解析为可执行命令.在这个教程和Expression Grammar Sample，这是一个很常见的请求；)

I would use Irony, the .NET language kit. You could construct a simple grammar with Irony and then parse the string into executable command. There's a decent example of an arthmetic grammar in this tutorial and in the Expression Grammar Sample, its a pretty common request ;)

我绝对建议使用适当的编译器，而不是 Regex 或使用自己的方法 - 如果您想添加更多规则，它会更具可扩展性.

I definitely suggest using a proper compiler as opposed to Regex or a roll your own approach - it will be much more extensible if you ever want to add more rules.