void Main_OnCommand(HWND hwnd, int id, HWND hwndCtl, UINT codeNotify)
{
    switch(id)
    {
      
   
        case IDC_INSERT:
        {
            MessageBox(hwnd,TEXT(" 一共花费好多钱了啊"),TEXT("你乱花钱啊啊，"),MB_OK|MB_ICONHAND);
        }
        break;
       
        case IDC_TOTLE:
            {
            TCHAR name[256];
            GetDlgItemText(hwnd,IDC_NAME,name,sizeof(name));
            TCHAR new[256];
            wsprintf(new,"%s你很牛逼吗",name);
            MessageBox(hwnd,new,new,MB_OK);
           
            }//老提示这有问题
        break;
        default:
        break;
    }
}

如鹏网讲的C语言也能干大事。。。模仿写的，老提示 在标记出有问题啊，怎么回事啊。。。
C:\Program Files\Microsoft Visual Studio\MyProjects\窗体\MainDlg.cpp(48) : error C2143: syntax error : missing ';' before '}'

void Main_OnCommand(HWND hwnd, int id, HWND hwndCtl, UINT codeNotify)
{
    switch(id)
    {
        case IDC_INSERT:
        MessageBox(hwnd,TEXT(" 一共花费好多钱了啊"),TEXT("你乱花钱啊啊，"),MB_OK|MB_ICONHAND);
        break;
      
        case IDC_TOTLE:
            TCHAR name[256];
            GetDlgItemText(hwnd,IDC_NAME,name,sizeof(name));
            TCHAR new[256];
            wsprintf(new,"%s你很牛逼吗",name);
            MessageBox(hwnd,new,new,MB_OK);
            break;
        default:
        break;
    }
}

不要使用new，new是c语言保留关键字