Question

在C＃中，我想获取环境变量列表，并将它们转换为字符串。但是，当我执行代码时，我收到错误：

嵌入式声明不能是声明或带标签的声明

at string teststring = de.Value;

using System;
using System.Collections;
using System.IO;

class Sample
{

public static void Main()
{
    Console.WriteLine();
    Console.WriteLine("GetEnvironmentVariables: ");
    foreach (DictionaryEntry de in Environment.GetEnvironmentVariables())
        string teststring = de.Value;
        string testpath = String.Format("\nValue as string: ",teststring);
        Console.WriteLine(testpath);
        Console.WriteLine("\n  {0} = {1}", de.Key, de.Value);       
}
}

我该如何解决这个问题？为什么会出现这种错误？

Answer 1

您需要在{区块周围放置}和foreach，因为：

您有2个变量声明
您有超过1行的陈述

public static void Main()
{
    Console.WriteLine();
    Console.WriteLine("GetEnvironmentVariables: ");
    foreach (DictionaryEntry de in Environment.GetEnvironmentVariables())
    {
        string teststring = de.Value;
        string testpath = String.Format("\nValue as string: ",teststring);
        Console.WriteLine(testpath);
        Console.WriteLine("\n  {0} = {1}", de.Key, de.Value);
    }
}

C＃如何将环境变量作为字符串返回

1 个答案: