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Jul 26, 2021
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[pull] master from Snailclimb:master #163

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387abcd
Update serialization part in Java基础知识.md
liukun2634 Jul 24, 2021
c2a8090
Update 图.md
Snailclimb Jul 26, 2021
541a6ed
Merge pull request #1290 from kaka2634/master
Snailclimb Jul 26, 2021
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2 changes: 1 addition & 1 deletion docs/dataStructures-algorithms/data-structure/图.md
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- 线性数据结构的元素满足唯一的线性关系，每个元素(除第一个和最后一个外)只有一个直接前趋和一个直接后继。
- 树形数据结构的元素之间有着明显的层次关系。

但是，树形结构的元素之间的关系是任意的。
但是，图形结构的元素之间的关系是任意的。

**何为图呢？** 简单来说，图就是由顶点的有穷非空集合和顶点之间的边组成的集合。通常表示为：**G(V,E)**，其中，G表示一个图，V表示顶点的集合，E表示边的集合。

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9 changes: 7 additions & 2 deletions docs/java/basis/Java基础知识.md
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Expand Up @@ -1348,9 +1348,14 @@ try (BufferedInputStream bin = new BufferedInputStream(new FileInputStream(new F

### Java 序列化中如果有些字段不想进行序列化，怎么办？

对于不想进行序列化的变量，使用`transient`关键字修饰。`
对于不想进行序列化的变量，使用 `transient` 关键字修饰。

`transient` 关键字的作用是：阻止实例中那些用此关键字修饰的的变量序列化；当对象被反序列化时，被 `transient` 修饰的变量值不会被持久化和恢复。`transient` 只能修饰变量，不能修饰类和方法。
`transient` 关键字的作用是：阻止实例中那些用此关键字修饰的的变量序列化；当对象被反序列化时，被 `transient` 修饰的变量值不会被持久化和恢复。

关于 `transient` 还有几点注意：
- `transient` 只能修饰变量，不能修饰类和方法。
- `transient` 修饰的变量，在反序列化后变量值将会被置成类型的默认值。例如，如果是修饰 `int` 类型，那么反序列后结果就是 `0`。
- `static` 变量因为不属于任何对象(Object)，所以无论有没有 `transient` 关键字修饰，均不会被序列化。

### 获取用键盘输入常用的两种方法

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