Update 14.6.md

Author: 1046102779

zh/14.6.md

@@ -33,7 +33,7 @@ type ProfController struct {
 }
 
 func (this *ProfController) Get() {
-	switch this.Ctx.Params[":pp"] {
+	switch this.Ctx.Param[":pp"] {
 	default:
 		pprof.Index(this.Ctx.ResponseWriter, this.Ctx.Request)
 	case "":
@@ -107,4 +107,4 @@ go tool pprof http://localhost:8080/debug/pprof/profile
 ## links
    * [目录](<preface.md>)
    * 上一节: [多语言支持](<14.5.md>)
-   * 下一节: [小结](<14.7.md>)
+   * 下一节: [小结](<14.7.md>)