FormatException：输入字符串的格式不正确。 TimerScript.Awake（）（在Assets / Scripts / TimerScript.cs：19）

Question

我收到错误：

  

FormatException：输入字符串的格式不正确   System.UInt64.Parse（System.String s，NumberStyles样式，   IFormatProvider提供者）（at   /Users/builduser/buildslave/mono/build/mcs/class/corlib/System/UInt64.cs:351）   System.UInt64.Parse（System.String s）（at   /Users/builduser/buildslave/mono/build/mcs/class/corlib/System/UInt64.cs:99）   TimerScript.Awake（）（在Assets / Scripts / TimerScript.cs：19）

以下是代码：

using System;
using UnityEngine;
using UnityEngine.UI;

public class TimerScript : MonoBehaviour {
    public float WaitTime = 7200000.0f;
    public Button OpenButton;
    public ulong lastCheastopen;
    public Text FreeCaseText;

    void Awake()
    {
        lastCheastopen = ulong.Parse(PlayerPrefs.GetString("LastCheast"));
    }

    private void Start()
    {
        OpenButton = GetComponent<Button>();

        if (!IsCheastReddy())
        {
            OpenButton.interactable = false;
        }
    }

    private void Update()
    {
    if (!OpenButton.IsInteractable())
        {
            PlayerPrefs.SetString("LastCheast", lastCheastopen.ToString());
            if (IsCheastReddy())
            {
                OpenButton.interactable = true;
                return;
            }

            ulong diff = ((ulong)DateTime.Now.Ticks - lastCheastopen);
            ulong m = diff / TimeSpan.TicksPerMillisecond;
            float secondsLeft = (float)(WaitTime - m) / 1000.0f;
            int seconds = ((int)secondsLeft % 60);
            int minutes = ((int)secondsLeft / 60) % 60;
            int hours = ((int)secondsLeft / 3600) % 24;

            string TimerString = string.Format("{0:0}H {1:00}Mim {2:00}Sec", hours, minutes, seconds);
            FreeCaseText.text = TimerString;
        }
    }


    public void OkCklickButton()
    {
        lastCheastopen = (ulong)DateTime.Now.Ticks;
        PlayerPrefs.SetString("LastCheast", lastCheastopen.ToString());
        PlayerPrefs.Save();
        OpenButton.interactable = false;
       // lastCheastopen = ulong.Parse(PlayerPrefs.GetString("LastCheast"));
    }

    private bool IsCheastReddy()
    {
        ulong diff = ((ulong)DateTime.Now.Ticks - lastCheastopen);
        ulong m = diff / TimeSpan.TicksPerMillisecond;
        float secondsLeft = (float)(WaitTime - m) / 1000.0f;

        if (secondsLeft < 0)
            return true;

        return false;
    }
}

Answer 1

尝试：

lastCheastopen = ulong.Parse（PlayerPrefs.GetString（“ LastCheast”，“ 0”））;