遍历 map[string]interface{} 类型

PrintJSON.go

package main

import "fmt"

// PrintJSON 遍历 map[string]interface{} 类型
func PrintJSON(m map[string]interface{}) {
	for k, v := range m {
		switch vv := v.(type) {
		case string:
			fmt.Println(k, "is string", vv)
		case float64:
			fmt.Println(k, "is float", int64(vv))
		case int:
			fmt.Println(k, "is int", vv)
		case []interface{}:
			fmt.Println(k, "is an array:")
			for i, u := range vv {
				fmt.Println(i, u)
			}
		case nil:
			fmt.Println(k, "is nil", "null")
		case map[string]interface{}:
			fmt.Println(k, "is an map:")
			PrintJSON(vv)
		default:
			fmt.Println(k, "is of a type I don't know how to handle ", fmt.Sprintf("%T", v))
		}
	}
}