Go json.Unmarshall()可以处理单个实体，但不能处理切片

package main

import (
	"encoding/json"
	"fmt"
)

type Person struct {
	Name string `json:"name"`
	Age  int    `json:"age"`
}

func main() {
	jsonData := `{"name":"John","age":30}`
	var person Person
	err := json.Unmarshal([]byte(jsonData), &person)
	if err != nil {
		fmt.Println("解析JSON数据失败:", err)
		return
	}
	fmt.Println("姓名:", person.Name)
	fmt.Println("年龄:", person.Age)
}

package main

import (
	"encoding/json"
	"fmt"
)

type Person struct {
	Name string `json:"name"`
	Age  int    `json:"age"`
}

func main() {
	jsonData := `[{"name":"John","age":30},{"name":"Alice","age":25}]`
	var persons []Person
	err := json.Unmarshal([]byte(jsonData), &persons)
	if err != nil {
		fmt.Println("解析JSON数据失败:", err)
		return
	}
	for _, person := range persons {
		fmt.Println("姓名:", person.Name)
		fmt.Println("年龄:", person.Age)
	}
}