# 数组和切片

创建：

`arr1 := new([len]type)`

`slice1 := make([]type, len)`

初始化：

`arr1 := [...]type{i1, i2, i3, i4, i5}`

`arrKeyValue := [len]type{i1: val1, i2: val2}`

`var slice1 []type = arr1[start:end]`

（1）如何截断数组或者切片的最后一个元素：

`line = line[:len(line)-1]`

（2）如何使用`for`或者`for-range`遍历一个数组（或者切片）：

```go
for i:=0; i < len(arr); i++ {
… = arr[i]
}
for ix, value := range arr {
…
}
```

（3）如何在一个二维数组或者切片`arr2Dim`中查找一个指定值`V`：

```go
found := false
Found: for row := range arr2Dim {
    for column := range arr2Dim[row] {
        if arr2Dim[row][column] == V{
            found = true
            break Found
        }
    }
}
```

## 链接

* [目录](https://github.com/yangchuansheng/the-way-to-go_ZH_CN/tree/f30ab7d8c58f85840a0afb548024b93642b518d5/eBook/directory.md)
* 上一节：[字符串](/the-way-to-go-zh-cn/di-si-bu-fen-shi-ji-ying-yong/18.0/18.1.md)
* 下一节：[映射](/the-way-to-go-zh-cn/di-si-bu-fen-shi-ji-ying-yong/18.0/18.3.md)


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