同样期待：
希望有找某模块首地址的代码

The GetModuleHandle function retrieves a module handle for the specified module if the file has been mapped into the address space of the calling process.

HMODULE GetModuleHandle(
  LPCTSTR lpModuleName   // module name
);

Parameters
lpModuleName
[in] Pointer to a null-terminated string that contains the name of the module (either a .dll or .exe file). If the file name extension is omitted, the default library extension .dll is appended. The file name string can include a trailing point character (.) to indicate that the module name has no extension. The string does not have to specify a path. When specifying a path, be sure to use backslashes (\), not forward slashes (/). The name is compared (case independently) to the names of modules currently mapped into the address space of the calling process.
If this parameter is NULL, GetModuleHandle returns a handle to the file used to create the calling process.

Return Values
If the function succeeds, the return value is a handle to the specified module.

If the function fails, the return value is NULL. To get extended error information, call GetLastError.

一段VC++示例:

        HMODULE hint=::GetModuleHandle("Dll.dll");  //需要查找的.dll或.exe
        if (hint==NULL)
        {
                AfxMessageBox("没找到");
        }
        else
        {
                CString str;
                str.Format("%x",hint);
                str="Dll.dll的基址是: "+str;
                AfxMessageBox(str);
        }

说明一点,dll里的代码你愿意怎么改就怎么改,不过你的内容是找首地址,跟修改无关.

我来学习一下楼上的谢谢