新建了一个winform工程,名为TestIL,包含一个窗体Form1,编译生成exe文件,使用
Reflector反编译Form1的Main函数,代码如下:
.method private hidebysig static void Main() cil managed
{
.custom instance void [mscorlib]System.STAThreadAttribute::.ctor()
// Code Size: 11 byte(s)
.maxstack 1
L_0000: newobj instance void TestIL.Form1::.ctor()
L_0005: call void [System.Windows.Forms]System.Windows.Forms. Application::Run([System.Windows.Forms]System.Windows.Forms.Form)
L_000a: ret
}
又使用ILDASM反编译相同的函数,代码如下:
.method private hidebysig static void Main() cil managed { .entrypoint //注意这个 .custom instance void [mscorlib]System.STAThreadAttribute::.ctor() = ( 01 00 00 00 ) // 代码大小 11 (0xb) .maxstack 1 IL_0000: newobj instance void TestIL.Form1::.ctor() IL_0005: call void [System.Windows.Forms]System.Windows.Forms. Application::Run(class [System.Windows.Forms]System.Windows.Forms.Form) IL_000a: ret } // end of method Form1::Main
Reflector反编译的代码没有.entrypoint,由于才开始接触这方面的知识, 在《Inside MICROSOFT .NET IL Assembler》(电子版) 中找到对.entrypoint的说明:
.entrypoint identifies the current method as the entry point of the application (the assembly). Each managed EXE file must have a single entry point.The ILAsm compiler will refuse to compile a module without a specified entry point, unless you use the /DLL command-line option.
看来还是.net自带的工具保险些 |
不知是否有其他原因,还请大家指教