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【笔记】Go查看数组或切片中是否存在指定值

 1 year ago
source link: https://loli.fj.cn/2023/04/15/Go%E6%9F%A5%E7%9C%8B%E6%95%B0%E7%BB%84%E6%88%96%E5%88%87%E7%89%87%E4%B8%AD%E6%98%AF%E5%90%A6%E5%AD%98%E5%9C%A8%E6%8C%87%E5%AE%9A%E5%80%BC/
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【笔记】Go查看数组或切片中是否存在指定值

2023-04-15

Go查看数组或切片中是否存在指定值

通过转换map找值

var list = ["a", "b"]
var l = "a"

// 将list的value作为作为map的key，将list的index作为map的value
var m = make(map[string]string)
for index, value := range list {
    m[value] = index
}

// 通过转换后的map查找list的索引是否存在
if m[l] > -1 {
    ...
}

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