const string vs static readonly string

     STATIC_READONLY_STRING =    CONST_STRING = 

編譯並運行：
C:\Users\de\Desktop\bao>csc /t:library /nologo ClassA1.cs

C:\Users\de\Desktop\bao>csc /r:ClassA1.dll /nologo ClassB1.cs

C:\Users\de\Desktop\bao>ClassB1
ClassA1.CONST_STRING = CONST_STRING
ClassA1.STATIC_READONLY_STRING = STATIC_READONLY_STRING

C:\Users\de\Desktop\bao>

重新編輯ClassA1.cs

     STATIC_READONLY_STRING =    CONST_STRING = 

重新編譯ClassA1.cs,並運行ClassB1.exe:
C:\Users\de\Desktop\bao>csc /t:library /nologo ClassA1.cs

C:\Users\de\Desktop\bao>ClassB1
ClassA1.CONST_STRING =
ClassA1.STATIC_READONLY_STRING =

C:\Users\de\Desktop\bao>

？？？？

反編譯打開ClassB1.exe

C:\Users\de\Desktop\bao>ildasm

C:\Users\de\Desktop\bao>

打開ClassB1.exe後，view/metainfo/show! (Ctrl + M)

在metainfo的最底部有這麼一節:

User Strings
-------------------------------------------------------
70000001 : (64) L"ClassA1.CONST_STRING = {0}\r\nClassA1.STATIC_READONLY_STRING = {1}"
70000084 : (12) L""

以及ClassB1.ShowClassA1對應的IL代碼

.method public hidebysig static void  ShowClassA1() cil managed
{
  // Code size       23 (0x17)
  .maxstack  8
  IL_0000:  nop
  IL_0001:  ldstr      "ClassA1.CONST_STRING = {0}\r\nClassA1.STATIC_READONL"
  + "Y_STRING = {1}"
  IL_0006: 
  IL_000b: 
  IL_0010:  call       void [mscorlib]System.Console::WriteLine(string,
                                                                object,
                                                                object)
  IL_0015:  nop
  IL_0016:  ret
} // end of method ClassB1::ShowClassA1

結束語:.NET字符串駐留機制