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异常.md

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+# 异常
+
+分为Error 和 Exception
+
+其中Exception中 又分为两类，如图中所示
+
+<img src="https://gitee.com/icecat2233/picture/raw/master/20250414182933522.png" alt="image-20250414182932233" style="zoom: 33%;" />
+
+其中两种错误的表现形式有下列
+
+
+
+![image-20250414183003770](imgh/image-20250414183003770.png)
+
+<img src="https://gitee.com/icecat2233/picture/raw/master/20250414182755030.png" alt="image-20250414182746446" style="zoom: 67%;" />
+
+# 异常的两种处理方式
+
+1. **try...catch...捕获异常**
+
+   <img src="https://gitee.com/icecat2233/picture/raw/master/20250416155305609.png" alt="image-20250416155256665" style="zoom: 50%;" />
+
+2. **throws抛出异常**
+
+   <img src="https://gitee.com/icecat2233/picture/raw/master/20250416155817373.png" alt="image-20250416155816351" style="zoom:50%;" />
+
+## 两种方式怎么选择：
+
+思路：这个问题是否需要暴漏出来？
+需要暴漏，用throws
+
+不需要暴漏，用try catch
+
+## throws和throw的区别
+
+<img src="https://gitee.com/icecat2233/picture/raw/master/20250416155752416.png" alt="image-20250416155750720" style="zoom:50%;" />
+
+# 自定义异常
+
+<img src="https://gitee.com/icecat2233/picture/raw/master/20250416163826822.png" alt="image-20250416163824387" style="zoom:50%;" />
+
+# 异常中的细节
+
+<img src="https://gitee.com/icecat2233/picture/raw/master/20250416164540545.png" alt="image-20250416164538085" style="zoom:50%;" />