如何将切片和数组合并到映射中

Question

我正在尝试在Go中创建一个莫尔斯电码映射。我该怎么做？如果这样更容易，我还可以将一个切片转换为数组。   alphabet := []string{}    for i := 'A'; i <= 'Z'; i++ {        alphabet = append(alphabet, string(i))    }    fmt.Println(alphabet)        morseSlice := [26]string{".-","-...","-.-.","-..",".","..-.","--.","....","..",".---","-.-",".-..","--","-.","---",".--.","--.-",".-.","...","-","..-","...-",".--","-..-","-.--","--.."}        // convert to map that maps letters to morse    var morseDict map[string]string        for i := 0; i > len(morseSlice); i++ {        morseDict[alphabet[i]] = morseSlice[i]    }        fmt.Println(morseDict)但我的地图是空的。我做错了什么？

Answer 1

您的代码将引发错误 。要解决此问题，您需要对其进行初始化。assignment to entry in nil map

elementMap := make(map[string]string) //Initialize

并且您的条件应更改为，或者您可以使用less thanrange

for i, ele := range alphabet {
  elementMap[ele] = morseSlice[i]
}