1、軟件試用基本上沒有什么難點，就是聯網獲取時間，然后與規定試用時間對比，超過了就強行退出App，沒有超過就不做操作，話不多說，上代碼：

//當前年、月、日、時、分、秒float curYear, curMonth, curDay, curHours, curMin, curSec;//截至XX年public const float year = 2023;//截至XX月public const float month = 10;//截至XX日public const float day = 31;//截至XX時public const float hours = 00;//截至XX分public const float min = 00;//截至XX秒public const float sec = 0;async void Awake(){await timerAsync();}async Task timerAsync(){char[] zifi = new char[] { '-', ':', ';', };var json = await new HttpClient().GetStringAsync($"https://apps.game.qq.com/CommArticle/app/reg/gdate.php");string shijian = json.Remove(0, 20);var fengge = shijian.Split(zifi);curYear = float.Parse(shijian.Substring(0, 4));Debug.Log($"{shijian}");curMonth = float.Parse(fengge[0]);curDay = float.Parse(fengge[2].Substring(0, 2));curHours = float.Parse(fengge[2].Substring(2, 3));curMin = float.Parse(fengge[3]);curSec = float.Parse(fengge[4].Substring(0, 2));Debug.Log($"原格式=>{shijian}");Debug.Log($"轉換后格式=>{curYear}{curMonth}{curDay}{curHours}{curMin}{curSec}");}private void FixedUpdate(){curYear = System.DateTime.Now.Year;curMonth = System.DateTime.Now.Month;curDay = System.DateTime.Now.Day;curHours = System.DateTime.Now.Hour;curMin = System.DateTime.Now.Minute;curSec = System.DateTime.Now.Second;if (curYear > year){ #if UNITY_EDITORUnityEditor.EditorApplication.isPlaying = false; #endif #if UNITY_STANDALONE_WINApplication.Quit(); #endif #if UNITY_ANDROIDApplication.Quit(); #endif}else if (curYear < year){return;}else if (curYear == year){if (curMonth > month){ #if UNITY_EDITORUnityEditor.EditorApplication.isPlaying = false; #endif #if UNITY_STANDALONE_WINApplication.Quit(); #endif #if UNITY_ANDROIDApplication.Quit(); #endif}else if (curMonth < month){return;}else if (curMonth == month){if (curDay > day){ #if UNITY_EDITORUnityEditor.EditorApplication.isPlaying = false; #endif #if UNITY_STANDALONE_WINApplication.Quit(); #endif #if UNITY_ANDROIDApplication.Quit(); #endif}else if (curDay < day){return;}else if (curDay == day){if (curHours > hours){ #if UNITY_EDITORUnityEditor.EditorApplication.isPlaying = false; #endif #if UNITY_STANDALONE_WINApplication.Quit(); #endif #if UNITY_ANDROIDApplication.Quit(); #endif}else if (curHours < hours){return;}else if (curHours == hours){if (curMin > min){ #if UNITY_EDITORUnityEditor.EditorApplication.isPlaying = false; #endif #if UNITY_STANDALONE_WINApplication.Quit(); #endif #if UNITY_ANDROIDApplication.Quit(); #endif}else if (curMin < min){return;}else if (curMin == min){if (curSec > sec){ #if UNITY_EDITORUnityEditor.EditorApplication.isPlaying = false; #endif #if UNITY_STANDALONE_WINApplication.Quit(); #endif #if UNITY_ANDROIDApplication.Quit(); #endif}else if (curSec <= sec){return;}}}}}}}private void OnGUI(){GUIStyle gs = new GUIStyle();gs.fontSize = 20;gs.normal.textColor = Color.white;GUI.Label(new Rect(750, 30, 200, 60), "體驗版：截止日期為" + year + "年" + month + "月" + day + "日" + min + "分" + sec + "秒", gs);}

我也是網上看的，但是忘記原作者了，我自己簡略修改了部分東西，原作者如果看到了可以聯系我刪除

2、當我們試用版有二級應用時，肯定不希望啟動器關了，但是程序還在運行，那我們可以像steam一樣，我們在游戲時關閉steam，游戲也會一同關閉，這段代碼寫在”OnDestroy“當腳本被回收，也就是應用被關閉時啟用（也可以這么理解）OnDestroy最好寫在總控腳本

processName是進程名字，當我們運行程序時可以打開任務管理器看進程名，然后獲取現在所有進程名，遍歷對比，當有進程名和processName相同時，殺死進程

這就是原理，還是挺簡單的

void OnDestroy(){processName = "3D";System.Diagnostics.Process[] processes = System.Diagnostics.Process.GetProcesses();foreach (System.Diagnostics.Process process in processes){try{if (!process.HasExited && process.ProcessName == processName)process.Kill();}catch (InvalidOperationException ex){Debug.Log(ex);}}}

總結

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