笔记备份：2025-08-20 22:10:51

2025-08-20 22:10:51 +08:00
parent f4b94badcf
commit 0363a36951
2 changed files with 6 additions and 2 deletions
--- a/.obsidian/plugins/keep-the-rhythm/data.json
+++ b/.obsidian/plugins/keep-the-rhythm/data.json
@@ -529,11 +529,11 @@
        }
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      "2025-08-20": {
-        "totalDelta": 964,
+        "totalDelta": 1016,
        "files": {
          "A1-Work/语言/Java/基础学习.md": {
            "initial": 9708,
-            "current": 10672
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--- a/A1-Work/语言/Java/基础学习.md
+++ b/A1-Work/语言/Java/基础学习.md
@@ -481,6 +481,10 @@ public class Test {

 直观的讲，带有父类型限定的通配符可以向泛型对象写入，带有子类型限定的通配符可以从泛型对象读取。

+试图理解 `<T extends Comparable<? super T>>`
+
+还有一个 `<?>`
+
 ## JDK 特性

 ### JDK7