Inno SetUp 开机自启动：
方法1. 不修改注册表，询问用户是否开机自启动，并将exe文件添加到开机文件夹中
[Tasks]
Name: "startupicon"; Description: "开机启动"; GroupDescription: "{cm:AdditionalIcons}";
[Icons]
Name: "{userstartup}\{#MyAppName}"; Filename: "{app}\{#MyAppExeName}"; Tasks: desktopicon
方法2.修改注册表方式（目前不知道怎么让用户自主选择）
[Registry]
Root: HKLM; Subkey: "SOFTWARE\Microsoft\Windows\CurrentVersion\Run"; ValueType: string; ValueName: "testrun"; ValueData: "{app}\{#MyAppExeName}"
