gin中XML/JSON/YAML/ProtoBuf 渲染

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package main   import (     "github.com/gin-gonic/gin"     "github.com/gin-gonic/gin/testdata/protoexample" )   func main() {     router := gin.Default()     router.GET("/some_json", func(c *gin.Context) {         names := []string{"zhangsan", "李四", "wangwu"}         c.JSON(200, names)     })     router.GET("/more_json", func(c *gin.Context) {         var msg struct {             Name string `json:"user"`             Message string             Number int         }         msg.Name, msg.Message, msg.Number = "lisi", "哈哈", 15         c.JSON(200, msg)     })     router.GET("/some_xml", func(context *gin.Context) {         context.XML(200, gin.H{"status": "XML", "Message": "hey"})     })     router.GET("/some_yaml", func(context *gin.Context) {         context.YAML(200, gin.H{"status": "YAML", "message": "ha"})     })     router.GET("/some_protobuf", func(context *gin.Context) {         resp := []int64{int64(1), int64(2)}         label := "test"         // protobuf 的具体定义写在 testdata/protoexample 文件中。         data := &protoexample.Test{Label: &label, Reps: resp}         // 请注意，数据在响应中变为二进制数据         // 将输出被 protoexample.Test protobuf 序列化了的数据         context.ProtoBuf(200, data)     })       router.Run() }