如何构造界面？ [关闭]

Question

I have this json array and I need to extract the data:

b := [[{"client": " 321"}], [{"number": "3123"}]]

How can I structure the interface?

var f interface{}
err := json.Unmarshal(b, &f)

f = map[string]interface{}{

----> ?

}

Answer 1

Is this what you are looking for?

You can test the code here.

package main

import (
    "encoding/json"
    "fmt"
    "log"
)

func main() {
    // test input (json.Unmarshal expects []byte)
    b := []byte("[[{\"client\": \" 321\"}], [{\"number\": \"3123\"}]]")

    // declare the target variable in the correct format
    var f [][]map[string]string

    // unmarshal the json
    err := json.Unmarshal(b, &f)
    if err != nil {
        // handle error
        log.Fatal(err)
    }

    // output result
    fmt.Println(f)
}

For details see the comments in the code. Feel free to ask.