douwen1006
2018-06-11 09:50
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在golang中的struct内部定义和访问映射字段?

Suppose I have a struct named Test,

type Test struct {
    Value1 int `json:"value1"`
    Value2 int `json:"Value2"`
    People map[string]string `json:"Value3"`
    Timeupdate string `json:"Timeupdate"`
}

and people variable is a collection of key value pairs. How can I define and access people inside the struct?

var object = Test{Value1: arg1, Value2: arg2, People: args3, Timeupdate: time.Now().String()}

how can I define and access people inside this object?

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假设我有一个名为Test的结构,

 类型Test  struct {
 Value1 int`json:“ value1”`
 Value2 int`json:“ Value2”`
 People map [string] string`json:“ Value3”`
 Timeupdate字符串`json:“ Timeupdate”`  
} 
   
 
 

和people变量是键值对的集合。 如何在结构内定义和访问人员?

  var对象= Test {Value1:arg1,Value2:arg2,People:args3,Timeupdate:time.Now()。  String()} 
   
 
 

我如何定义和访问该对象内部的人?

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1条回答 默认 最新

  • dougang2749 2018-06-11 10:08
    已采纳

    You could initialize an empty map:

    args3 := map[string]string{}
    

    Or a map with values:

    args3 := map[string]string{"jane": "Jane"}
    

    You can assign values later directly:

    args3["john"] = "john"
    

    Or after initializing object:

    var object = Test{Value1: arg1, Value2: arg2, People: args3, Timeupdate: time.Now().String()}
    object.People["claire"] = "Claire"
    
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