Unity的C#编程教程_39_循环语句挑战：计数程序

• 设计一个累计程序

• 每3秒钟计数+1

• 达到一个随机生成的上限时，累计停止

• 方法一：

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

public class CountLoop : MonoBehaviour
{

    public int countNum = 0;
    public int maxNum;

    // Start is called before the first frame update
    void Start()
    {
        maxNum = Random.Range(10, 15); // 设定计数上限
        StartCoroutine(CountRoutine()); // 启动协程
    }

    // Update is called once per frame
    void Update()
    {
        
    }

    IEnumerator CountRoutine() // 设定协程
    {
        while (countNum < maxNum)
        {
            yield return new WaitForSeconds(3.0f); // 等待 3 秒
            countNum++; // 计数+1

        }
    }
}

• 方法二：

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

public class CountLoop : MonoBehaviour
{

    public int countNum = 0;
    public int maxNum;

    // Start is called before the first frame update
    void Start()
    {
        maxNum = Random.Range(10, 15); // 设定计数上限
        StartCoroutine(CountRoutine()); // 启动协程
    }

    // Update is called once per frame
    void Update()
    {
        
    }

    IEnumerator CountRoutine() // 设定协程
    {
        while (true)
        {
            yield return new WaitForSeconds(3.0f); // 等待 3 秒
            countNum++; // 计数+1
            if (countNum == maxNum) // 达到最大值跳出循环
            {
                break;
            }
        }
    }
}