出现的错误如下：D:\gocode\src\gin_demo>go mod tidygo: finding module for package github.com/davecgh/go-spew/spewgin_demo/lession01 importsgithub.com/gin-gonic/gin tested bygithub.com/gin-gonic/gin.test imp

type animal struct {name stringage int}func main(){ani := animal{name: "lcq",age:23,}marshal, err := json.Marshal(ani)if err != nil {fmt.Println("err:", err)return}fmt.Println(string(marshal))}序列化后的结果