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>[success] ### **1： map使用方法：**

* #### **定義map方法1：**
* map【KeyType】ValueType ??
* KeyType:表示鍵的類型。ValueType:表示鍵對應的值的類型。

![](https://img.kancloud.cn/0f/6c/0f6c941d0b5adabe8dd9f16be3229cc8_1280x396.png)

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* #### **定義map方法2：先定義后賦值**

![](https://img.kancloud.cn/bc/5f/bc5f494a2ee60abcdd9736a17fec2eec_1280x467.png)

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* #### **定義map方法3：定義后直接賦值**
![](https://img.kancloud.cn/2d/b1/2db18a2f66a5d3e8311eeaccf23e00e7_1280x567.png)

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