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Merge pull request #419 from yif-hong/patch-4

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Java 基础 “隐式类型转换”中++和+=效果一样，也会执行隐式的类型转换
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郑永川 2018-09-14 14:22:26 +08:00 committed by GitHub
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@ -368,10 +368,11 @@ short s1 = 1;
// s1 = s1 + 1; // s1 = s1 + 1;
``` ```
但是使用 += 运算符可以执行隐式类型转换。 但是使用 += 或 ++ 运算符可以执行隐式类型转换。
```java ```java
s1 += 1; s1 += 1;
// s1++;
``` ```
上面的语句相当于将 s1 + 1 的计算结果进行了向下转型： 上面的语句相当于将 s1 + 1 的计算结果进行了向下转型：