添加场景、对应场景代码

unity/Assets/UI/ScoreDisplay.cs

@@ -0,0 +1,42 @@
+using UnityEngine;
+using UnityEngine.UI;
+
+namespace GameFramework
+{
+    /// <summary>
+    /// 得分显示组件。
+    /// 订阅 ScoreManager.onScoreChanged 事件，自动更新 Text。
+    /// 挂到场景中带有 Text 组件的 Canvas 元素上即可。
+    /// </summary>
+    public class ScoreDisplay : MonoBehaviour
+    {
+        [SerializeField] Text scoreText;
+        [SerializeField] string format = "{0}";
+
+        void OnEnable()
+        {
+            ScoreManager.onScoreChanged += UpdateText;
+        }
+
+        void OnDisable()
+        {
+            ScoreManager.onScoreChanged -= UpdateText;
+        }
+
+        void Start()
+        {
+            if (scoreText == null)
+                scoreText = GetComponent<Text>();
+            if (ScoreManager.Instance != null)
+                UpdateText(ScoreManager.Instance.CurrentScore);
+            else
+                UpdateText(0);
+        }
+
+        void UpdateText(int score)
+        {
+            if (scoreText != null)
+                scoreText.text = string.Format(format, score);
+        }
+    }
+}