unity---存档方法PlayerPrefs

存档方法

PlayerPrefs

利用键值对的存储方式
存值的方法： PlayerPrefs.SetString("Name",t);//SetInt,SetFloat
取值的方法： PlayerPrefs.GetString("Name","无");//GetInt,GetFloat 第二个参数为默认值

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.UI;

public class TextTest : MonoBehaviour
{
    // Start is called before the first frame update

    public Text text;
    public InputField ifd;
    public void Submit(){//提交（保存）
        string t= ifd.text.ToString();
        PlayerPrefs.SetString("Name",t);
       
    }
    public void Delete(){//删除
        if(PlayerPrefs.HasKey("Name")){
            PlayerPrefs.DeleteKey("Name");
        }
        //删除所有键
        // PlayerPrefs.DeleteAll();
    }
    public void UpLoad(){//上传
         text.text=PlayerPrefs.GetString("Name","无");
    }
    
}

利用PlayerPrefs存储复杂结构

需要提前将类通过[System.Serializable]序列化，然后通过 Unity 内部 JsonUtility.Tojson 转化
为 json 字符串，然后再通过PlayerPrefs存储。这部分内容在《Unity3D 游戏开发》P239 有详细介绍。

[System.Serializable]
public class PlayerInfo  //用户信息表
{
 public string name;
 public int score;
 public string time;
 public PlayerInfo(string name, int score, string time)
 {
 this.name = name;
 this.score = score;
 this.time = time;
 }
}
[System.Serializable]
public class Record
{
 public List<PlayerInfo> RankList;
}

//-----获取/创建
public void Init()
 {
 if (PlayerPrefs.HasKey("RankList"))
 {
 record = JsonUtility.FromJson<Record>(PlayerPrefs.GetString("RankList"));
 }
 else
 {
 record = new Record();
 record.RankList = new List<PlayerInfo>();
 }
 }
//-----保存
public void SaveRank()
 {
 string json = JsonUtility.ToJson(record);
 PlayerPrefs.SetString("RankList", json);
 }